[3/6] cryptodev: remove max number of sessions
diff mbox series

Message ID 20180608220234.10170-4-pablo.de.lara.guarch@intel.com
State Superseded, archived
Delegated to: Pablo de Lara Guarch
Headers show
Series
  • Cryptodev API changes
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Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Pablo de Lara June 8, 2018, 10:02 p.m. UTC
Sessions are not created and stored in the crypto device
anymore, since now the session mempool is created
at the application level.

Therefore the limitation of the maximum number of sessions
that can be created should not be dependent of the crypto device.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
 config/common_base                               | 12 ------------
 config/rte_config.h                              | 14 --------------
 doc/guides/cryptodevs/aesni_gcm.rst              |  4 +---
 doc/guides/cryptodevs/aesni_mb.rst               |  4 +---
 doc/guides/cryptodevs/armv8.rst                  |  1 -
 doc/guides/cryptodevs/ccp.rst                    |  2 --
 doc/guides/cryptodevs/dpaa2_sec.rst              |  5 -----
 doc/guides/cryptodevs/dpaa_sec.rst               |  5 -----
 doc/guides/cryptodevs/kasumi.rst                 |  4 +---
 doc/guides/cryptodevs/mvsam.rst                  |  1 -
 doc/guides/cryptodevs/null.rst                   |  4 +---
 doc/guides/cryptodevs/openssl.rst                |  1 -
 doc/guides/cryptodevs/scheduler.rst              |  4 ----
 doc/guides/cryptodevs/snow3g.rst                 |  4 +---
 doc/guides/cryptodevs/zuc.rst                    |  4 +---
 doc/guides/prog_guide/cryptodev_lib.rst          |  9 ++-------
 doc/guides/rel_notes/deprecation.rst             |  3 ---
 doc/guides/rel_notes/release_18_08.rst           |  3 ++-
 drivers/crypto/aesni_gcm/aesni_gcm_pmd.c         |  5 +----
 drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c     |  1 -
 drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h |  2 --
 drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c       |  5 +----
 drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c   |  1 -
 .../crypto/aesni_mb/rte_aesni_mb_pmd_private.h   |  2 --
 drivers/crypto/armv8/rte_armv8_pmd.c             |  5 +----
 drivers/crypto/armv8/rte_armv8_pmd_ops.c         |  1 -
 drivers/crypto/armv8/rte_armv8_pmd_private.h     |  2 --
 drivers/crypto/ccp/ccp_pmd_ops.c                 |  1 -
 drivers/crypto/ccp/ccp_pmd_private.h             |  1 -
 drivers/crypto/ccp/rte_ccp_pmd.c                 | 16 +---------------
 drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c      |  3 ++-
 drivers/crypto/dpaa_sec/dpaa_sec.c               |  1 -
 drivers/crypto/dpaa_sec/dpaa_sec.h               |  1 +
 drivers/crypto/kasumi/rte_kasumi_pmd.c           |  5 +----
 drivers/crypto/kasumi/rte_kasumi_pmd_ops.c       |  1 -
 drivers/crypto/kasumi/rte_kasumi_pmd_private.h   |  2 --
 drivers/crypto/mvsam/rte_mrvl_pmd.c              |  6 ------
 drivers/crypto/mvsam/rte_mrvl_pmd_ops.c          |  1 -
 drivers/crypto/mvsam/rte_mrvl_pmd_private.h      |  1 -
 drivers/crypto/null/null_crypto_pmd.c            |  3 ---
 drivers/crypto/null/null_crypto_pmd_ops.c        |  1 -
 drivers/crypto/null/null_crypto_pmd_private.h    |  1 -
 drivers/crypto/openssl/rte_openssl_pmd.c         |  3 ---
 drivers/crypto/openssl/rte_openssl_pmd_ops.c     |  1 -
 drivers/crypto/openssl/rte_openssl_pmd_private.h |  2 --
 drivers/crypto/qat/qat_crypto.c                  |  1 -
 drivers/crypto/qat/qat_crypto.h                  |  2 --
 drivers/crypto/qat/rte_qat_cryptodev.c           |  4 +---
 drivers/crypto/scheduler/scheduler_pmd.c         | 13 +------------
 drivers/crypto/scheduler/scheduler_pmd_ops.c     |  7 -------
 drivers/crypto/snow3g/rte_snow3g_pmd.c           |  3 ---
 drivers/crypto/snow3g/rte_snow3g_pmd_ops.c       |  1 -
 drivers/crypto/snow3g/rte_snow3g_pmd_private.h   |  2 --
 drivers/crypto/virtio/virtio_cryptodev.c         |  3 ---
 drivers/crypto/zuc/rte_zuc_pmd.c                 |  5 +----
 drivers/crypto/zuc/rte_zuc_pmd_ops.c             |  1 -
 drivers/crypto/zuc/rte_zuc_pmd_private.h         |  2 --
 lib/librte_cryptodev/rte_cryptodev.h             |  5 -----
 lib/librte_cryptodev/rte_cryptodev_pmd.c         | 12 ++----------
 lib/librte_cryptodev/rte_cryptodev_pmd.h         |  4 ----
 test/test/test_cryptodev.c                       | 13 +++++++------
 61 files changed, 30 insertions(+), 206 deletions(-)

Comments

Tomasz Duszynski June 12, 2018, 11:37 a.m. UTC | #1
Hello Pablo,

On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> Sessions are not created and stored in the crypto device
> anymore, since now the session mempool is created
> at the application level.
>
> Therefore the limitation of the maximum number of sessions
> that can be created should not be dependent of the crypto device.
>
> Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> ---
>  config/common_base                               | 12 ------------
>  config/rte_config.h                              | 14 --------------
>  doc/guides/cryptodevs/aesni_gcm.rst              |  4 +---
>  doc/guides/cryptodevs/aesni_mb.rst               |  4 +---
>  doc/guides/cryptodevs/armv8.rst                  |  1 -
>  doc/guides/cryptodevs/ccp.rst                    |  2 --
>  doc/guides/cryptodevs/dpaa2_sec.rst              |  5 -----
>  doc/guides/cryptodevs/dpaa_sec.rst               |  5 -----
>  doc/guides/cryptodevs/kasumi.rst                 |  4 +---
>  doc/guides/cryptodevs/mvsam.rst                  |  1 -
>  doc/guides/cryptodevs/null.rst                   |  4 +---
>  doc/guides/cryptodevs/openssl.rst                |  1 -
>  doc/guides/cryptodevs/scheduler.rst              |  4 ----
>  doc/guides/cryptodevs/snow3g.rst                 |  4 +---
>  doc/guides/cryptodevs/zuc.rst                    |  4 +---
>  doc/guides/prog_guide/cryptodev_lib.rst          |  9 ++-------
>  doc/guides/rel_notes/deprecation.rst             |  3 ---
>  doc/guides/rel_notes/release_18_08.rst           |  3 ++-
>  drivers/crypto/aesni_gcm/aesni_gcm_pmd.c         |  5 +----
>  drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c     |  1 -
>  drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h |  2 --
>  drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c       |  5 +----
>  drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c   |  1 -
>  .../crypto/aesni_mb/rte_aesni_mb_pmd_private.h   |  2 --
>  drivers/crypto/armv8/rte_armv8_pmd.c             |  5 +----
>  drivers/crypto/armv8/rte_armv8_pmd_ops.c         |  1 -
>  drivers/crypto/armv8/rte_armv8_pmd_private.h     |  2 --
>  drivers/crypto/ccp/ccp_pmd_ops.c                 |  1 -
>  drivers/crypto/ccp/ccp_pmd_private.h             |  1 -
>  drivers/crypto/ccp/rte_ccp_pmd.c                 | 16 +---------------
>  drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c      |  3 ++-
>  drivers/crypto/dpaa_sec/dpaa_sec.c               |  1 -
>  drivers/crypto/dpaa_sec/dpaa_sec.h               |  1 +
>  drivers/crypto/kasumi/rte_kasumi_pmd.c           |  5 +----
>  drivers/crypto/kasumi/rte_kasumi_pmd_ops.c       |  1 -
>  drivers/crypto/kasumi/rte_kasumi_pmd_private.h   |  2 --
>  drivers/crypto/mvsam/rte_mrvl_pmd.c              |  6 ------
>  drivers/crypto/mvsam/rte_mrvl_pmd_ops.c          |  1 -
>  drivers/crypto/mvsam/rte_mrvl_pmd_private.h      |  1 -
>  drivers/crypto/null/null_crypto_pmd.c            |  3 ---
>  drivers/crypto/null/null_crypto_pmd_ops.c        |  1 -
>  drivers/crypto/null/null_crypto_pmd_private.h    |  1 -
>  drivers/crypto/openssl/rte_openssl_pmd.c         |  3 ---
>  drivers/crypto/openssl/rte_openssl_pmd_ops.c     |  1 -
>  drivers/crypto/openssl/rte_openssl_pmd_private.h |  2 --
>  drivers/crypto/qat/qat_crypto.c                  |  1 -
>  drivers/crypto/qat/qat_crypto.h                  |  2 --
>  drivers/crypto/qat/rte_qat_cryptodev.c           |  4 +---
>  drivers/crypto/scheduler/scheduler_pmd.c         | 13 +------------
>  drivers/crypto/scheduler/scheduler_pmd_ops.c     |  7 -------
>  drivers/crypto/snow3g/rte_snow3g_pmd.c           |  3 ---
>  drivers/crypto/snow3g/rte_snow3g_pmd_ops.c       |  1 -
>  drivers/crypto/snow3g/rte_snow3g_pmd_private.h   |  2 --
>  drivers/crypto/virtio/virtio_cryptodev.c         |  3 ---
>  drivers/crypto/zuc/rte_zuc_pmd.c                 |  5 +----
>  drivers/crypto/zuc/rte_zuc_pmd_ops.c             |  1 -
>  drivers/crypto/zuc/rte_zuc_pmd_private.h         |  2 --
>  lib/librte_cryptodev/rte_cryptodev.h             |  5 -----
>  lib/librte_cryptodev/rte_cryptodev_pmd.c         | 12 ++----------
>  lib/librte_cryptodev/rte_cryptodev_pmd.h         |  4 ----
>  test/test/test_cryptodev.c                       | 13 +++++++------
>  61 files changed, 30 insertions(+), 206 deletions(-)
>
> diff --git a/config/common_base b/config/common_base
> index 6b0d1cbbb..db6dec335 100644
> --- a/config/common_base
> +++ b/config/common_base
> @@ -473,14 +473,12 @@ CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO_DEBUG=n
>  # Compile NXP DPAA2 crypto sec driver for CAAM HW
>  #
>  CONFIG_RTE_LIBRTE_PMD_DPAA2_SEC=n
> -CONFIG_RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS=2048
>
>  #
>  # NXP DPAA caam - crypto driver
>  #
>  CONFIG_RTE_LIBRTE_PMD_DPAA_SEC=n
>  CONFIG_RTE_LIBRTE_DPAA_MAX_CRYPTODEV=4
> -CONFIG_RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS=2048
>
>  #
>  # Compile PMD for QuickAssist based devices
> @@ -490,11 +488,6 @@ CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_INIT=n
>  CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_TX=n
>  CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_RX=n
>  CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_DRIVER=n
> -#
> -# Number of sessions to create in the session memory pool
> -# on a single QuickAssist device.
> -#
> -CONFIG_RTE_QAT_PMD_MAX_NB_SESSIONS=2048
>
>  #
>  # Compile PMD for virtio crypto devices
> @@ -504,11 +497,6 @@ CONFIG_RTE_LIBRTE_PMD_VIRTIO_CRYPTO=y
>  # Number of maximum virtio crypto devices
>  #
>  CONFIG_RTE_MAX_VIRTIO_CRYPTO=32
> -#
> -# Number of sessions to create in the session memory pool
> -# on a single virtio crypto device.
> -#
> -CONFIG_RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS=1024
>
>  #
>  # Compile PMD for AESNI backed device
> diff --git a/config/rte_config.h b/config/rte_config.h
> index a1d01759e..7261d28d6 100644
> --- a/config/rte_config.h
> +++ b/config/rte_config.h
> @@ -85,23 +85,9 @@
>
>  /****** driver defines ********/
>
> -/*
> - * Number of sessions to create in the session memory pool
> - * on a single instance of crypto HW device.
> - */
> -/* QuickAssist device */
> -#define RTE_QAT_PMD_MAX_NB_SESSIONS 2048
> -
>  /* virtio crypto defines */
> -#define RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS 1024
>  #define RTE_MAX_VIRTIO_CRYPTO 32
>
> -/* DPAA2_SEC */
> -#define RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS 2048
> -
> -/* DPAA_SEC */
> -#define RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS 2048
> -
>  /* DPAA SEC max cryptodev devices*/
>  #define RTE_LIBRTE_DPAA_MAX_CRYPTODEV	4
>
> diff --git a/doc/guides/cryptodevs/aesni_gcm.rst b/doc/guides/cryptodevs/aesni_gcm.rst
> index 01590e850..2cfd1e9f7 100644
> --- a/doc/guides/cryptodevs/aesni_gcm.rst
> +++ b/doc/guides/cryptodevs/aesni_gcm.rst
> @@ -83,11 +83,9 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  Example:
>
>  .. code-block:: console
>
> -    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_gcm,socket_id=0,max_nb_sessions=128" \
> +    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_gcm,socket_id=0" \
>      -- -p 1 --cdev SW --chain AEAD --aead_algo "aes-gcm"
> diff --git a/doc/guides/cryptodevs/aesni_mb.rst b/doc/guides/cryptodevs/aesni_mb.rst
> index 236828c0a..a0602a10d 100644
> --- a/doc/guides/cryptodevs/aesni_mb.rst
> +++ b/doc/guides/cryptodevs/aesni_mb.rst
> @@ -106,13 +106,11 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  Example:
>
>  .. code-block:: console
>
> -    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_mb,socket_id=0,max_nb_sessions=128" \
> +    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_mb,socket_id=0" \
>      -- -p 1 --cdev SW --chain CIPHER_HASH --cipher_algo "aes-cbc" --auth_algo "sha1-hmac"
>
>  Extra notes
> diff --git a/doc/guides/cryptodevs/armv8.rst b/doc/guides/cryptodevs/armv8.rst
> index 725398daf..4adf3cf40 100644
> --- a/doc/guides/cryptodevs/armv8.rst
> +++ b/doc/guides/cryptodevs/armv8.rst
> @@ -64,7 +64,6 @@ For performance test cryptodev_sw_armv8_perftest can be used.
>  Limitations
>  -----------
>
> -* Maximum number of sessions is 2048.
>  * Only chained operations are supported.
>  * AES-128-CBC is the only supported cipher variant.
>  * Cipher input data has to be a multiple of 16 bytes.
> diff --git a/doc/guides/cryptodevs/ccp.rst b/doc/guides/cryptodevs/ccp.rst
> index 034d20367..d577d5a1c 100644
> --- a/doc/guides/cryptodevs/ccp.rst
> +++ b/doc/guides/cryptodevs/ccp.rst
> @@ -101,8 +101,6 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device.
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  * ccp_auth_opt: Specify authentication operations to perform on CPU using openssl APIs.
>
>  To validate ccp pmd, l2fwd-crypto example can be used with following command:
> diff --git a/doc/guides/cryptodevs/dpaa2_sec.rst b/doc/guides/cryptodevs/dpaa2_sec.rst
> index 3ea24c8aa..990befeb7 100644
> --- a/doc/guides/cryptodevs/dpaa2_sec.rst
> +++ b/doc/guides/cryptodevs/dpaa2_sec.rst
> @@ -200,11 +200,6 @@ Please note that enabling debugging options may affect system performance.
>    By default it is only enabled in defconfig_arm64-dpaa2-* config.
>    Toggle compilation of the ``librte_pmd_dpaa2_sec`` driver.
>
> -* ``CONFIG_RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS``
> -  By default it is set as 2048 in defconfig_arm64-dpaa2-* config.
> -  It indicates Number of sessions to create in the session memory pool
> -  on a single DPAA2 SEC device.
> -
>  Installations
>  -------------
>  To compile the DPAA2_SEC PMD for Linux arm64 gcc target, run the
> diff --git a/doc/guides/cryptodevs/dpaa_sec.rst b/doc/guides/cryptodevs/dpaa_sec.rst
> index c14d6d7b1..c5097a84f 100644
> --- a/doc/guides/cryptodevs/dpaa_sec.rst
> +++ b/doc/guides/cryptodevs/dpaa_sec.rst
> @@ -145,11 +145,6 @@ Please note that enabling debugging options may affect system performance.
>    By default it is only enabled in defconfig_arm64-dpaa-* config.
>    Toggle compilation of the ``librte_pmd_dpaa_sec`` driver.
>
> -* ``CONFIG_RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS``
> -  By default it is set as 2048 in defconfig_arm64-dpaa-* config.
> -  It indicates Number of sessions to create in the session memory pool
> -  on a single DPAA SEC device.
> -
>  Installations
>  -------------
>  To compile the DPAA_SEC PMD for Linux arm64 gcc target, run the
> diff --git a/doc/guides/cryptodevs/kasumi.rst b/doc/guides/cryptodevs/kasumi.rst
> index 2265eee4e..74bc4d840 100644
> --- a/doc/guides/cryptodevs/kasumi.rst
> +++ b/doc/guides/cryptodevs/kasumi.rst
> @@ -87,13 +87,11 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  Example:
>
>  .. code-block:: console
>
> -    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_kasumi,socket_id=0,max_nb_sessions=128" \
> +    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_kasumi,socket_id=0" \
>      -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "kasumi-f8"
>
>  Extra notes on KASUMI F9
> diff --git a/doc/guides/cryptodevs/mvsam.rst b/doc/guides/cryptodevs/mvsam.rst
> index fd418c264..b91bb0fb6 100644
> --- a/doc/guides/cryptodevs/mvsam.rst
> +++ b/doc/guides/cryptodevs/mvsam.rst
> @@ -115,7 +115,6 @@ loaded:
>  The following parameters (all optional) are exported by the driver:
>
>  * max_nb_queue_pairs: maximum number of queue pairs in the device (8 by default).
> -* max_nb_sessions: maximum number of sessions that can be created (2048 by default).
>  * socket_id: socket on which to allocate the device resources on.
>
>  l2fwd-crypto example application can be used to verify MVSAM CRYPTO PMD
> diff --git a/doc/guides/cryptodevs/null.rst b/doc/guides/cryptodevs/null.rst
> index c980e0ac8..ca39fe444 100644
> --- a/doc/guides/cryptodevs/null.rst
> +++ b/doc/guides/cryptodevs/null.rst
> @@ -61,11 +61,9 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  Example:
>
>  .. code-block:: console
>
> -    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_null,socket_id=0,max_nb_sessions=128" \
> +    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_null,socket_id=0" \
>      -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "null"
> diff --git a/doc/guides/cryptodevs/openssl.rst b/doc/guides/cryptodevs/openssl.rst
> index 427fc807c..153ad0657 100644
> --- a/doc/guides/cryptodevs/openssl.rst
> +++ b/doc/guides/cryptodevs/openssl.rst
> @@ -98,7 +98,6 @@ To verify real traffic l2fwd-crypto example can be used with this command:
>  Limitations
>  -----------
>
> -* Maximum number of sessions is 2048.
>  * Chained mbufs are supported only for source mbuf (destination must be
>    contiguous).
>  * Hash only is not supported for GCM and GMAC.
> diff --git a/doc/guides/cryptodevs/scheduler.rst b/doc/guides/cryptodevs/scheduler.rst
> index d67894d55..e266ec5a3 100644
> --- a/doc/guides/cryptodevs/scheduler.rst
> +++ b/doc/guides/cryptodevs/scheduler.rst
> @@ -58,10 +58,6 @@ two calls:
>    to be allocated (by default, socket_id will be the socket where the core
>    that is creating the PMD is running on).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be
> -  created. This value may be overwritten internally if there are too
> -  many devices are attached.
> -
>  * slave: If a cryptodev has been initialized with specific name, it can be
>    attached to the scheduler using this parameter, simply filling the name
>    here. Multiple cryptodevs can be attached initially by presenting this
> diff --git a/doc/guides/cryptodevs/snow3g.rst b/doc/guides/cryptodevs/snow3g.rst
> index 7cba712c1..e0b9a73f7 100644
> --- a/doc/guides/cryptodevs/snow3g.rst
> +++ b/doc/guides/cryptodevs/snow3g.rst
> @@ -79,11 +79,9 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  Example:
>
>  .. code-block:: console
>
> -    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_snow3g,socket_id=0,max_nb_sessions=128" \
> +    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_snow3g,socket_id=0" \
>      -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "snow3g-uea2"
> diff --git a/doc/guides/cryptodevs/zuc.rst b/doc/guides/cryptodevs/zuc.rst
> index e38989968..7bebbb48b 100644
> --- a/doc/guides/cryptodevs/zuc.rst
> +++ b/doc/guides/cryptodevs/zuc.rst
> @@ -79,11 +79,9 @@ The following parameters (all optional) can be provided in the previous two call
>
>  * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
>
> -* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
> -
>  Example:
>
>  .. code-block:: console
>
> -    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_zuc,socket_id=0,max_nb_sessions=128" \
> +    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_zuc,socket_id=0" \
>      -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "zuc-eea3"
> diff --git a/doc/guides/prog_guide/cryptodev_lib.rst b/doc/guides/prog_guide/cryptodev_lib.rst
> index d02bb7514..c83184fe9 100644
> --- a/doc/guides/prog_guide/cryptodev_lib.rst
> +++ b/doc/guides/prog_guide/cryptodev_lib.rst
> @@ -41,7 +41,7 @@ From the command line using the --vdev EAL option
>
>  .. code-block:: console
>
> -   --vdev  'crypto_aesni_mb0,max_nb_queue_pairs=2,max_nb_sessions=1024,socket_id=0'
> +   --vdev  'crypto_aesni_mb0,max_nb_queue_pairs=2,socket_id=0'
>
>  .. Note::
>
> @@ -57,12 +57,11 @@ Our using the rte_vdev_init API within the application code.
>  .. code-block:: c
>
>     rte_vdev_init("crypto_aesni_mb",
> -                     "max_nb_queue_pairs=2,max_nb_sessions=1024,socket_id=0")
> +                     "max_nb_queue_pairs=2,socket_id=0")
>
>  All virtual Crypto devices support the following initialization parameters:
>
>  * ``max_nb_queue_pairs`` - maximum number of queue pairs supported by the device.
> -* ``max_nb_sessions`` - maximum number of sessions supported by the device
>  * ``socket_id`` - socket on which to allocate the device resources on.
>
>
> @@ -276,10 +275,6 @@ relevant information for the device.
>          const struct rte_cryptodev_capabilities *capabilities;
>
>          unsigned max_nb_queue_pairs;
> -
> -        struct {
> -            unsigned max_nb_sessions;
> -        } sym;
>      };
>
>
> diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
> index b71080bb8..dc014da21 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -101,9 +101,6 @@ Deprecation Notices
>  * cryptodev: The following changes will be made in the library
>    for 18.08:
>
> -  - Removal of ``sym`` structure in ``rte_cryptodev_info`` structure,
> -    containing fields not relevant anymore since the session mempool
> -    is not internal in the crypto device anymore.
>    - Functions ``rte_cryptodev_queue_pair_attach_sym_session()`` and
>      ``rte_cryptodev_queue_pair_dettach_sym_session()`` will be deprecated from
>      18.05 and removed in 18.08, as there are no drivers doing anything useful
> diff --git a/doc/guides/rel_notes/release_18_08.rst b/doc/guides/rel_notes/release_18_08.rst
> index ba710e845..a6f31713a 100644
> --- a/doc/guides/rel_notes/release_18_08.rst
> +++ b/doc/guides/rel_notes/release_18_08.rst
> @@ -56,7 +56,8 @@ API Changes
>     =========================================================
>
>  * cryptodev: In struct ``struct rte_cryptodev_info``, field ``rte_pci_device *pci_dev``
> -  has been replaced with field ``struct rte_device *device``.
> +  has been replaced with field ``struct rte_device *device`` and
> +  field ``sym`` has been removed.
>
>
>  ABI Changes
> diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
> index 80360dd9c..cd5b1952b 100644
> --- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
> +++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
> @@ -513,7 +513,6 @@ aesni_gcm_create(const char *name,
>  	internals->vector_mode = vector_mode;
>
>  	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>  }
> @@ -525,8 +524,7 @@ aesni_gcm_probe(struct rte_vdev_device *vdev)
>  		"",
>  		sizeof(struct aesni_gcm_private),
>  		rte_socket_id(),
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
>  	};
>  	const char *name;
>  	const char *input_args;
> @@ -568,7 +566,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_GCM_PMD, aesni_gcm_pmd_drv);
>  RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_GCM_PMD, cryptodev_aesni_gcm_pmd);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_GCM_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(aesni_gcm_crypto_drv, aesni_gcm_pmd_drv.driver,
>  		cryptodev_driver_id);
> diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
> index 6f542137c..b05122c1b 100644
> --- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
> +++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
> @@ -143,7 +143,6 @@ aesni_gcm_pmd_info_get(struct rte_cryptodev *dev,
>  		dev_info->capabilities = aesni_gcm_pmd_capabilities;
>
>  		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  	}
>  }
>
> diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h
> index 3d60583b0..b496377dd 100644
> --- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h
> +++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h
> @@ -39,8 +39,6 @@ struct aesni_gcm_private {
>  	/**< Vector mode */
>  	unsigned max_nb_queue_pairs;
>  	/**< Max number of queue pairs supported by device */
> -	unsigned max_nb_sessions;
> -	/**< Max number of sessions supported by device */
>  };
>
>  struct aesni_gcm_qp {
> diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
> index bb35c66ab..bb647f736 100644
> --- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
> +++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
> @@ -885,7 +885,6 @@ cryptodev_aesni_mb_create(const char *name,
>
>  	internals->vector_mode = vector_mode;
>  	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>  }
> @@ -897,8 +896,7 @@ cryptodev_aesni_mb_probe(struct rte_vdev_device *vdev)
>  		"",
>  		sizeof(struct aesni_mb_private),
>  		rte_socket_id(),
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
>  	};
>  	const char *name, *args;
>  	int retval;
> @@ -947,7 +945,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd_drv);
>  RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_MB_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(aesni_mb_crypto_drv,
>  		cryptodev_aesni_mb_pmd_drv.driver,
> diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
> index 01530523f..7c735f5dc 100644
> --- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
> +++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
> @@ -387,7 +387,6 @@ aesni_mb_pmd_info_get(struct rte_cryptodev *dev,
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = aesni_mb_pmd_capabilities;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  	}
>  }
>
> diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> index a33b2f695..9520cdf9c 100644
> --- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> +++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
> @@ -124,8 +124,6 @@ struct aesni_mb_private {
>  	/**< CPU vector instruction set mode */
>  	unsigned max_nb_queue_pairs;
>  	/**< Max number of queue pairs supported by device */
> -	unsigned max_nb_sessions;
> -	/**< Max number of sessions supported by device */
>  };
>
>  /** AESNI Multi buffer queue pair */
> diff --git a/drivers/crypto/armv8/rte_armv8_pmd.c b/drivers/crypto/armv8/rte_armv8_pmd.c
> index fbb08f729..db0d8a2a9 100644
> --- a/drivers/crypto/armv8/rte_armv8_pmd.c
> +++ b/drivers/crypto/armv8/rte_armv8_pmd.c
> @@ -779,7 +779,6 @@ cryptodev_armv8_crypto_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>
> @@ -800,8 +799,7 @@ cryptodev_armv8_crypto_init(struct rte_vdev_device *vdev)
>  		"",
>  		sizeof(struct armv8_crypto_private),
>  		rte_socket_id(),
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
>  	};
>  	const char *name;
>  	const char *input_args;
> @@ -848,7 +846,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_ARMV8_PMD, armv8_crypto_pmd_drv);
>  RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_ARMV8_PMD, cryptodev_armv8_pmd);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_ARMV8_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(armv8_crypto_drv, armv8_crypto_pmd_drv.driver,
>  		cryptodev_driver_id);
> diff --git a/drivers/crypto/armv8/rte_armv8_pmd_ops.c b/drivers/crypto/armv8/rte_armv8_pmd_ops.c
> index c64aef09f..d31ef7d66 100644
> --- a/drivers/crypto/armv8/rte_armv8_pmd_ops.c
> +++ b/drivers/crypto/armv8/rte_armv8_pmd_ops.c
> @@ -154,7 +154,6 @@ armv8_crypto_pmd_info_get(struct rte_cryptodev *dev,
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = armv8_crypto_pmd_capabilities;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  	}
>  }
>
> diff --git a/drivers/crypto/armv8/rte_armv8_pmd_private.h b/drivers/crypto/armv8/rte_armv8_pmd_private.h
> index b8966e934..7feb021db 100644
> --- a/drivers/crypto/armv8/rte_armv8_pmd_private.h
> +++ b/drivers/crypto/armv8/rte_armv8_pmd_private.h
> @@ -106,8 +106,6 @@ typedef void (*crypto_key_sched_t)(uint8_t *, const uint8_t *);
>  struct armv8_crypto_private {
>  	unsigned int max_nb_qpairs;
>  	/**< Max number of queue pairs */
> -	unsigned int max_nb_sessions;
> -	/**< Max number of sessions */
>  };
>
>  /** ARMv8 crypto queue pair */
> diff --git a/drivers/crypto/ccp/ccp_pmd_ops.c b/drivers/crypto/ccp/ccp_pmd_ops.c
> index 80b75ccb0..7e383feed 100644
> --- a/drivers/crypto/ccp/ccp_pmd_ops.c
> +++ b/drivers/crypto/ccp/ccp_pmd_ops.c
> @@ -624,7 +624,6 @@ ccp_pmd_info_get(struct rte_cryptodev *dev,
>  		if (internals->auth_opt == 1)
>  			dev_info->capabilities = ccp_crypto_cap_complete;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  	}
>  }
>
> diff --git a/drivers/crypto/ccp/ccp_pmd_private.h b/drivers/crypto/ccp/ccp_pmd_private.h
> index f4498048f..79752f687 100644
> --- a/drivers/crypto/ccp/ccp_pmd_private.h
> +++ b/drivers/crypto/ccp/ccp_pmd_private.h
> @@ -40,7 +40,6 @@
>  /* private data structure for each CCP crypto device */
>  struct ccp_private {
>  	unsigned int max_nb_qpairs;	/**< Max number of queue pairs */
> -	unsigned int max_nb_sessions;	/**< Max number of sessions */
>  	uint8_t crypto_num_dev;		/**< Number of working crypto devices */
>  	bool auth_opt;			/**< Authentication offload option */
>  	struct ccp_device *last_dev;	/**< Last working crypto device */
> diff --git a/drivers/crypto/ccp/rte_ccp_pmd.c b/drivers/crypto/ccp/rte_ccp_pmd.c
> index 2061f465e..d70640f6d 100644
> --- a/drivers/crypto/ccp/rte_ccp_pmd.c
> +++ b/drivers/crypto/ccp/rte_ccp_pmd.c
> @@ -30,14 +30,12 @@ struct ccp_pmd_init_params {
>  #define CCP_CRYPTODEV_PARAM_NAME		("name")
>  #define CCP_CRYPTODEV_PARAM_SOCKET_ID		("socket_id")
>  #define CCP_CRYPTODEV_PARAM_MAX_NB_QP		("max_nb_queue_pairs")
> -#define CCP_CRYPTODEV_PARAM_MAX_NB_SESS		("max_nb_sessions")
>  #define CCP_CRYPTODEV_PARAM_AUTH_OPT		("ccp_auth_opt")
>
>  const char *ccp_pmd_valid_params[] = {
>  	CCP_CRYPTODEV_PARAM_NAME,
>  	CCP_CRYPTODEV_PARAM_SOCKET_ID,
>  	CCP_CRYPTODEV_PARAM_MAX_NB_QP,
> -	CCP_CRYPTODEV_PARAM_MAX_NB_SESS,
>  	CCP_CRYPTODEV_PARAM_AUTH_OPT,
>  };
>
> @@ -124,13 +122,6 @@ ccp_pmd_parse_input_args(struct ccp_pmd_init_params *params,
>  		if (ret < 0)
>  			goto free_kvlist;
>
> -		ret = rte_kvargs_process(kvlist,
> -					 CCP_CRYPTODEV_PARAM_MAX_NB_SESS,
> -					 &parse_integer_arg,
> -					 &params->def_p.max_nb_sessions);
> -		if (ret < 0)
> -			goto free_kvlist;
> -
>  		ret = rte_kvargs_process(kvlist,
>  					 CCP_CRYPTODEV_PARAM_SOCKET_ID,
>  					 &parse_integer_arg,
> @@ -334,7 +325,6 @@ cryptodev_ccp_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_qpairs = init_params->def_p.max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->def_p.max_nb_sessions;
>  	internals->auth_opt = init_params->auth_opt;
>  	internals->crypto_num_dev = cryptodev_cnt;
>
> @@ -359,8 +349,7 @@ cryptodev_ccp_probe(struct rte_vdev_device *vdev)
>  			"",
>  			sizeof(struct ccp_private),
>  			rte_socket_id(),
> -			CCP_PMD_MAX_QUEUE_PAIRS,
> -			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +			CCP_PMD_MAX_QUEUE_PAIRS
>  		},
>  		.auth_opt = CCP_PMD_AUTH_OPT_CCP,
>  	};
> @@ -382,8 +371,6 @@ cryptodev_ccp_probe(struct rte_vdev_device *vdev)
>  		init_params.def_p.socket_id);
>  	RTE_LOG(INFO, PMD, "Max number of queue pairs = %d\n",
>  		init_params.def_p.max_nb_queue_pairs);
> -	RTE_LOG(INFO, PMD, "Max number of sessions = %d\n",
> -		init_params.def_p.max_nb_sessions);
>  	RTE_LOG(INFO, PMD, "Authentication offload to %s\n",
>  		((init_params.auth_opt == 0) ? "CCP" : "CPU"));
>
> @@ -404,7 +391,6 @@ static struct cryptodev_driver ccp_crypto_drv;
>  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_CCP_PMD, cryptodev_ccp_pmd_drv);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_CCP_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int> "
>  	"ccp_auth_opt=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(ccp_crypto_drv, cryptodev_ccp_pmd_drv.driver,
> diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
> index 56fa969d3..16ab0b6a6 100644
> --- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
> +++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
> @@ -55,6 +55,8 @@ typedef uint64_t	dma_addr_t;
>  #define SEC_FLC_DHR_OUTBOUND	-114
>  #define SEC_FLC_DHR_INBOUND	0
>
> +#define RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS 2048
> +
>  enum rta_sec_era rta_sec_era = RTA_SEC_ERA_8;
>
>  static uint8_t cryptodev_driver_id;
> @@ -2626,7 +2628,6 @@ dpaa2_sec_dev_infos_get(struct rte_cryptodev *dev,
>  		info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
>  		info->feature_flags = dev->feature_flags;
>  		info->capabilities = dpaa2_sec_capabilities;
> -		info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		info->driver_id = cryptodev_driver_id;
>  	}
>  }
> diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
> index 73cae483b..909583bd0 100644
> --- a/drivers/crypto/dpaa_sec/dpaa_sec.c
> +++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
> @@ -2214,7 +2214,6 @@ dpaa_sec_dev_infos_get(struct rte_cryptodev *dev,
>  		info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
>  		info->feature_flags = dev->feature_flags;
>  		info->capabilities = dpaa_sec_capabilities;
> -		info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		info->driver_id = cryptodev_driver_id;
>  	}
>  }
> diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.h b/drivers/crypto/dpaa_sec/dpaa_sec.h
> index e15e373fd..91df68009 100644
> --- a/drivers/crypto/dpaa_sec/dpaa_sec.h
> +++ b/drivers/crypto/dpaa_sec/dpaa_sec.h
> @@ -137,6 +137,7 @@ struct dpaa_sec_qp {
>  };
>
>  #define RTE_DPAA_MAX_NB_SEC_QPS 8
> +#define RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS 2048
>  #define RTE_DPAA_MAX_RX_QUEUE RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS
>  #define DPAA_MAX_DEQUEUE_NUM_FRAMES 63
>
> diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd.c b/drivers/crypto/kasumi/rte_kasumi_pmd.c
> index 205dc1de7..65376b211 100644
> --- a/drivers/crypto/kasumi/rte_kasumi_pmd.c
> +++ b/drivers/crypto/kasumi/rte_kasumi_pmd.c
> @@ -555,7 +555,6 @@ cryptodev_kasumi_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>  init_error:
> @@ -573,8 +572,7 @@ cryptodev_kasumi_probe(struct rte_vdev_device *vdev)
>  		"",
>  		sizeof(struct kasumi_private),
>  		rte_socket_id(),
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
>  	};
>  	const char *name;
>  	const char *input_args;
> @@ -617,7 +615,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd_drv);
>  RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_KASUMI_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(kasumi_crypto_drv,
>  		cryptodev_kasumi_pmd_drv.driver, cryptodev_driver_id);
> diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c b/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
> index a388dbb63..284669341 100644
> --- a/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
> +++ b/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
> @@ -126,7 +126,6 @@ kasumi_pmd_info_get(struct rte_cryptodev *dev,
>  	if (dev_info != NULL) {
>  		dev_info->driver_id = dev->driver_id;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = kasumi_pmd_capabilities;
>  	}
> diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd_private.h b/drivers/crypto/kasumi/rte_kasumi_pmd_private.h
> index a397bee65..2b12818bc 100644
> --- a/drivers/crypto/kasumi/rte_kasumi_pmd_private.h
> +++ b/drivers/crypto/kasumi/rte_kasumi_pmd_private.h
> @@ -36,8 +36,6 @@
>  struct kasumi_private {
>  	unsigned max_nb_queue_pairs;
>  	/**< Max number of queue pairs supported by device */
> -	unsigned max_nb_sessions;
> -	/**< Max number of sessions supported by device */
>  };
>
>  /** KASUMI buffer queue pair */
> diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> index 1b6029a56..822b6cac7 100644
> --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	/*
>  	 * ret == -EEXIST is correct, it means DMA
> @@ -734,8 +733,6 @@ cryptodev_mrvl_crypto_create(const char *name,
>  			"DMA memory has been already initialized by a different driver.");
>  	}
>
> -	sam_params.max_num_sessions = internals->max_nb_sessions;

This will not fly since library maintains separate list of sessions.
We have to initialize this number to something sane. Since we cannot
get it from userspace perhaps make that compile-time configurable
by adding separate CONFIG_?

> -
>  	return sam_init(&sam_params);
>
>  init_error:
> @@ -766,8 +763,6 @@ cryptodev_mrvl_crypto_init(struct rte_vdev_device *vdev)
>
>  	init_params.private_data_size = sizeof(struct mrvl_crypto_private);
>  	init_params.max_nb_queue_pairs = sam_get_num_inst() * SAM_HW_RING_NUM;
> -	init_params.max_nb_sessions =
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS;
>  	init_params.socket_id = rte_socket_id();
>
>  	ret = rte_cryptodev_pmd_parse_input_args(&init_params, args);
> @@ -823,7 +818,6 @@ static struct cryptodev_driver mrvl_crypto_drv;
>  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_MRVL_PMD, cryptodev_mrvl_pmd_drv);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_MRVL_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(mrvl_crypto_drv, cryptodev_mrvl_pmd_drv.driver,
>  		cryptodev_driver_id);
> diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c b/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c
> index 3f8de37b7..944a415cf 100644
> --- a/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c
> +++ b/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c
> @@ -471,7 +471,6 @@ mrvl_crypto_pmd_info_get(struct rte_cryptodev *dev,
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = mrvl_crypto_pmd_capabilities;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  	}
>  }
>
> diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd_private.h b/drivers/crypto/mvsam/rte_mrvl_pmd_private.h
> index c16d95b46..bb528493a 100644
> --- a/drivers/crypto/mvsam/rte_mrvl_pmd_private.h
> +++ b/drivers/crypto/mvsam/rte_mrvl_pmd_private.h
> @@ -51,7 +51,6 @@ enum mrvl_crypto_chain_order {
>  /** Private data structure for each crypto device. */
>  struct mrvl_crypto_private {
>  	unsigned int max_nb_qpairs;	/**< Max number of queue pairs */
> -	unsigned int max_nb_sessions;	/**< Max number of sessions */
>  };
>
>  /** MRVL crypto queue pair structure. */
> diff --git a/drivers/crypto/null/null_crypto_pmd.c b/drivers/crypto/null/null_crypto_pmd.c
> index 052b6546c..a8499cf94 100644
> --- a/drivers/crypto/null/null_crypto_pmd.c
> +++ b/drivers/crypto/null/null_crypto_pmd.c
> @@ -182,7 +182,6 @@ cryptodev_null_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>  }
> @@ -196,7 +195,6 @@ cryptodev_null_probe(struct rte_vdev_device *dev)
>  		sizeof(struct null_crypto_private),
>  		rte_socket_id(),
>  		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
>  	};
>  	const char *name, *args;
>  	int retval;
> @@ -245,7 +243,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_NULL_PMD, cryptodev_null_pmd_drv);
>  RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_NULL_PMD, cryptodev_null_pmd);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_NULL_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(null_crypto_drv, cryptodev_null_pmd_drv.driver,
>  		cryptodev_driver_id);
> diff --git a/drivers/crypto/null/null_crypto_pmd_ops.c b/drivers/crypto/null/null_crypto_pmd_ops.c
> index f8e5f61f1..3ca1370e8 100644
> --- a/drivers/crypto/null/null_crypto_pmd_ops.c
> +++ b/drivers/crypto/null/null_crypto_pmd_ops.c
> @@ -121,7 +121,6 @@ null_crypto_pmd_info_get(struct rte_cryptodev *dev,
>  	if (dev_info != NULL) {
>  		dev_info->driver_id = dev->driver_id;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = null_crypto_pmd_capabilities;
>  	}
> diff --git a/drivers/crypto/null/null_crypto_pmd_private.h b/drivers/crypto/null/null_crypto_pmd_private.h
> index 0fd133625..d7d769f3d 100644
> --- a/drivers/crypto/null/null_crypto_pmd_private.h
> +++ b/drivers/crypto/null/null_crypto_pmd_private.h
> @@ -32,7 +32,6 @@
>  /** private data structure for each NULL crypto device */
>  struct null_crypto_private {
>  	unsigned max_nb_qpairs;		/**< Max number of queue pairs */
> -	unsigned max_nb_sessions;	/**< Max number of sessions */
>  };
>
>  /** NULL crypto queue pair */
> diff --git a/drivers/crypto/openssl/rte_openssl_pmd.c b/drivers/crypto/openssl/rte_openssl_pmd.c
> index 93c6d7e5d..965cab9f2 100644
> --- a/drivers/crypto/openssl/rte_openssl_pmd.c
> +++ b/drivers/crypto/openssl/rte_openssl_pmd.c
> @@ -1666,7 +1666,6 @@ cryptodev_openssl_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>
> @@ -1687,7 +1686,6 @@ cryptodev_openssl_probe(struct rte_vdev_device *vdev)
>  		sizeof(struct openssl_private),
>  		rte_socket_id(),
>  		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
>  	};
>  	const char *name;
>  	const char *input_args;
> @@ -1731,7 +1729,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
>  	cryptodev_openssl_pmd_drv);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv,
>  		cryptodev_openssl_pmd_drv.driver, cryptodev_driver_id);
> diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
> index 1cb87d59a..485c80e7f 100644
> --- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
> +++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
> @@ -547,7 +547,6 @@ openssl_pmd_info_get(struct rte_cryptodev *dev,
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = openssl_pmd_capabilities;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  	}
>  }
>
> diff --git a/drivers/crypto/openssl/rte_openssl_pmd_private.h b/drivers/crypto/openssl/rte_openssl_pmd_private.h
> index bc8dc7cdc..02ea81d5c 100644
> --- a/drivers/crypto/openssl/rte_openssl_pmd_private.h
> +++ b/drivers/crypto/openssl/rte_openssl_pmd_private.h
> @@ -62,8 +62,6 @@ enum openssl_auth_mode {
>  struct openssl_private {
>  	unsigned int max_nb_qpairs;
>  	/**< Max number of queue pairs */
> -	unsigned int max_nb_sessions;
> -	/**< Max number of sessions */
>  };
>
>  /** OPENSSL crypto queue pair */
> diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
> index 768dcbae0..e89d3bc11 100644
> --- a/drivers/crypto/qat/qat_crypto.c
> +++ b/drivers/crypto/qat/qat_crypto.c
> @@ -1654,7 +1654,6 @@ void qat_dev_info_get(struct rte_cryptodev *dev,
>  				ADF_NUM_BUNDLES_PER_DEV;
>  		info->feature_flags = dev->feature_flags;
>  		info->capabilities = internals->qat_dev_capabilities;
> -		info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		info->driver_id = cryptodev_qat_driver_id;
>  	}
>  }
> diff --git a/drivers/crypto/qat/qat_crypto.h b/drivers/crypto/qat/qat_crypto.h
> index 281a142b9..c84cf669f 100644
> --- a/drivers/crypto/qat/qat_crypto.h
> +++ b/drivers/crypto/qat/qat_crypto.h
> @@ -75,8 +75,6 @@ struct qat_qp {
>  struct qat_pmd_private {
>  	unsigned max_nb_queue_pairs;
>  	/**< Max number of queue pairs supported by device */
> -	unsigned max_nb_sessions;
> -	/**< Max number of sessions supported by device */
>  	enum qat_device_gen qat_dev_gen;
>  	/**< QAT device generation */
>  	const struct rte_cryptodev_capabilities *qat_dev_capabilities;
> diff --git a/drivers/crypto/qat/rte_qat_cryptodev.c b/drivers/crypto/qat/rte_qat_cryptodev.c
> index c8da07af6..74a903d3a 100644
> --- a/drivers/crypto/qat/rte_qat_cryptodev.c
> +++ b/drivers/crypto/qat/rte_qat_cryptodev.c
> @@ -94,7 +94,6 @@ crypto_qat_create(const char *name, struct rte_pci_device *pci_dev,
>  			RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
>
>  	internals = cryptodev->data->dev_private;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>  	switch (pci_dev->id.device_id) {
>  	case 0x0443:
>  		internals->qat_dev_gen = QAT_GEN1;
> @@ -131,8 +130,7 @@ static int crypto_qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
>  	struct rte_cryptodev_pmd_init_params init_params = {
>  		.name = "",
>  		.socket_id = pci_dev->device.numa_node,
> -		.private_data_size = sizeof(struct qat_pmd_private),
> -		.max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS
> +		.private_data_size = sizeof(struct qat_pmd_private)
>  	};
>  	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
>
> diff --git a/drivers/crypto/scheduler/scheduler_pmd.c b/drivers/crypto/scheduler/scheduler_pmd.c
> index 25d6409f3..32a19c106 100644
> --- a/drivers/crypto/scheduler/scheduler_pmd.c
> +++ b/drivers/crypto/scheduler/scheduler_pmd.c
> @@ -31,7 +31,6 @@ struct scheduler_init_params {
>  #define RTE_CRYPTODEV_VDEV_MODE			("mode")
>  #define RTE_CRYPTODEV_VDEV_ORDERING		("ordering")
>  #define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG	("max_nb_queue_pairs")
> -#define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG	("max_nb_sessions")
>  #define RTE_CRYPTODEV_VDEV_SOCKET_ID		("socket_id")
>  #define RTE_CRYPTODEV_VDEV_COREMASK		("coremask")
>  #define RTE_CRYPTODEV_VDEV_CORELIST		("corelist")
> @@ -42,7 +41,6 @@ const char *scheduler_valid_params[] = {
>  	RTE_CRYPTODEV_VDEV_MODE,
>  	RTE_CRYPTODEV_VDEV_ORDERING,
>  	RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
> -	RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
>  	RTE_CRYPTODEV_VDEV_SOCKET_ID,
>  	RTE_CRYPTODEV_VDEV_COREMASK,
>  	RTE_CRYPTODEV_VDEV_CORELIST
> @@ -406,13 +404,6 @@ scheduler_parse_init_params(struct scheduler_init_params *params,
>  		if (ret < 0)
>  			goto free_kvlist;
>
> -		ret = rte_kvargs_process(kvlist,
> -				RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
> -				&parse_integer_arg,
> -				&params->def_p.max_nb_sessions);
> -		if (ret < 0)
> -			goto free_kvlist;
> -
>  		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
>  				&parse_integer_arg,
>  				&params->def_p.socket_id);
> @@ -466,8 +457,7 @@ cryptodev_scheduler_probe(struct rte_vdev_device *vdev)
>  			"",
>  			sizeof(struct scheduler_ctx),
>  			rte_socket_id(),
> -			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
>  		},
>  		.nb_slaves = 0,
>  		.mode = CDEV_SCHED_MODE_NOT_SET,
> @@ -500,7 +490,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SCHEDULER_PMD,
>  	cryptodev_scheduler_pmd_drv);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SCHEDULER_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int> "
>  	"slave=<name>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(scheduler_crypto_drv,
> diff --git a/drivers/crypto/scheduler/scheduler_pmd_ops.c b/drivers/crypto/scheduler/scheduler_pmd_ops.c
> index 147dc51e9..88be72a05 100644
> --- a/drivers/crypto/scheduler/scheduler_pmd_ops.c
> +++ b/drivers/crypto/scheduler/scheduler_pmd_ops.c
> @@ -321,8 +321,6 @@ scheduler_pmd_info_get(struct rte_cryptodev *dev,
>  		struct rte_cryptodev_info *dev_info)
>  {
>  	struct scheduler_ctx *sched_ctx = dev->data->dev_private;
> -	uint32_t max_nb_sessions = sched_ctx->nb_slaves ?
> -			UINT32_MAX : RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS;
>  	uint32_t i;
>
>  	if (!dev_info)
> @@ -338,17 +336,12 @@ scheduler_pmd_info_get(struct rte_cryptodev *dev,
>  		struct rte_cryptodev_info slave_info;
>
>  		rte_cryptodev_info_get(slave_dev_id, &slave_info);
> -		max_nb_sessions = slave_info.sym.max_nb_sessions <
> -				max_nb_sessions ?
> -				slave_info.sym.max_nb_sessions :
> -				max_nb_sessions;
>  	}
>
>  	dev_info->driver_id = dev->driver_id;
>  	dev_info->feature_flags = dev->feature_flags;
>  	dev_info->capabilities = sched_ctx->capabilities;
>  	dev_info->max_nb_queue_pairs = sched_ctx->max_nb_queue_pairs;
> -	dev_info->sym.max_nb_sessions = max_nb_sessions;
>  }
>
>  /** Release queue pair */
> diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd.c b/drivers/crypto/snow3g/rte_snow3g_pmd.c
> index 72751e35e..fe595abe1 100644
> --- a/drivers/crypto/snow3g/rte_snow3g_pmd.c
> +++ b/drivers/crypto/snow3g/rte_snow3g_pmd.c
> @@ -555,7 +555,6 @@ cryptodev_snow3g_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>  init_error:
> @@ -574,7 +573,6 @@ cryptodev_snow3g_probe(struct rte_vdev_device *vdev)
>  		sizeof(struct snow3g_private),
>  		rte_socket_id(),
>  		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
>  	};
>  	const char *name;
>  	const char *input_args;
> @@ -617,7 +615,6 @@ RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd_drv);
>  RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SNOW3G_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(snow3g_crypto_drv,
>  		cryptodev_snow3g_pmd_drv.driver, cryptodev_driver_id);
> diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
> index f60b47598..fff4644c0 100644
> --- a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
> +++ b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
> @@ -130,7 +130,6 @@ snow3g_pmd_info_get(struct rte_cryptodev *dev,
>  	if (dev_info != NULL) {
>  		dev_info->driver_id = dev->driver_id;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = snow3g_pmd_capabilities;
>  	}
> diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd_private.h b/drivers/crypto/snow3g/rte_snow3g_pmd_private.h
> index eea900e0a..2c6e1a948 100644
> --- a/drivers/crypto/snow3g/rte_snow3g_pmd_private.h
> +++ b/drivers/crypto/snow3g/rte_snow3g_pmd_private.h
> @@ -36,8 +36,6 @@
>  struct snow3g_private {
>  	unsigned max_nb_queue_pairs;
>  	/**< Max number of queue pairs supported by device */
> -	unsigned max_nb_sessions;
> -	/**< Max number of sessions supported by device */
>  };
>
>  /** SNOW 3G buffer queue pair */
> diff --git a/drivers/crypto/virtio/virtio_cryptodev.c b/drivers/crypto/virtio/virtio_cryptodev.c
> index 482edea1a..8395801a4 100644
> --- a/drivers/crypto/virtio/virtio_cryptodev.c
> +++ b/drivers/crypto/virtio/virtio_cryptodev.c
> @@ -1411,8 +1411,6 @@ virtio_crypto_dev_info_get(struct rte_cryptodev *dev,
>  		info->driver_id = cryptodev_virtio_driver_id;
>  		info->feature_flags = dev->feature_flags;
>  		info->max_nb_queue_pairs = hw->max_dataqueues;
> -		info->sym.max_nb_sessions =
> -			RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS;
>  		info->capabilities = hw->virtio_dev_capabilities;
>  	}
>  }
> @@ -1426,7 +1424,6 @@ crypto_virtio_pci_probe(
>  		.name = "",
>  		.socket_id = rte_socket_id(),
>  		.private_data_size = sizeof(struct virtio_crypto_hw),
> -		.max_nb_sessions = RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS
>  	};
>  	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
>
> diff --git a/drivers/crypto/zuc/rte_zuc_pmd.c b/drivers/crypto/zuc/rte_zuc_pmd.c
> index a805b2278..396f25975 100644
> --- a/drivers/crypto/zuc/rte_zuc_pmd.c
> +++ b/drivers/crypto/zuc/rte_zuc_pmd.c
> @@ -479,7 +479,6 @@ cryptodev_zuc_create(const char *name,
>  	internals = dev->data->dev_private;
>
>  	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
> -	internals->max_nb_sessions = init_params->max_nb_sessions;
>
>  	return 0;
>  init_error:
> @@ -497,8 +496,7 @@ cryptodev_zuc_probe(struct rte_vdev_device *vdev)
>  		"",
>  		sizeof(struct zuc_private),
>  		rte_socket_id(),
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
> -		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
> +		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
>  	};
>  	const char *name;
>  	const char *input_args;
> @@ -541,7 +539,6 @@ static struct cryptodev_driver zuc_crypto_drv;
>  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_ZUC_PMD, cryptodev_zuc_pmd_drv);
>  RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_ZUC_PMD,
>  	"max_nb_queue_pairs=<int> "
> -	"max_nb_sessions=<int> "
>  	"socket_id=<int>");
>  RTE_PMD_REGISTER_CRYPTO_DRIVER(zuc_crypto_drv, cryptodev_zuc_pmd_drv.driver,
>  		cryptodev_driver_id);
> diff --git a/drivers/crypto/zuc/rte_zuc_pmd_ops.c b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
> index 8abac8989..ac509e70d 100644
> --- a/drivers/crypto/zuc/rte_zuc_pmd_ops.c
> +++ b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
> @@ -130,7 +130,6 @@ zuc_pmd_info_get(struct rte_cryptodev *dev,
>  	if (dev_info != NULL) {
>  		dev_info->driver_id = dev->driver_id;
>  		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
> -		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
>  		dev_info->feature_flags = dev->feature_flags;
>  		dev_info->capabilities = zuc_pmd_capabilities;
>  	}
> diff --git a/drivers/crypto/zuc/rte_zuc_pmd_private.h b/drivers/crypto/zuc/rte_zuc_pmd_private.h
> index b83c4a047..2bd378ad6 100644
> --- a/drivers/crypto/zuc/rte_zuc_pmd_private.h
> +++ b/drivers/crypto/zuc/rte_zuc_pmd_private.h
> @@ -37,8 +37,6 @@
>  struct zuc_private {
>  	unsigned max_nb_queue_pairs;
>  	/**< Max number of queue pairs supported by device */
> -	unsigned max_nb_sessions;
> -	/**< Max number of sessions supported by device */
>  };
>
>  /** ZUC buffer queue pair */
> diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
> index a4b8cccc2..78be5bdb8 100644
> --- a/lib/librte_cryptodev/rte_cryptodev.h
> +++ b/lib/librte_cryptodev/rte_cryptodev.h
> @@ -381,11 +381,6 @@ struct rte_cryptodev_info {
>
>  	unsigned max_nb_queue_pairs;
>  	/**< Maximum number of queues pairs supported by device. */
> -
> -	struct {
> -		unsigned max_nb_sessions;
> -		/**< Maximum number of sessions supported by device. */
> -	} sym;
>  };
>
>  #define RTE_CRYPTODEV_DETACHED  (0)
> diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.c b/lib/librte_cryptodev/rte_cryptodev_pmd.c
> index f2aac24b7..2088ac3f3 100644
> --- a/lib/librte_cryptodev/rte_cryptodev_pmd.c
> +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.c
> @@ -65,13 +65,6 @@ rte_cryptodev_pmd_parse_input_args(
>  		if (ret < 0)
>  			goto free_kvlist;
>
> -		ret = rte_kvargs_process(kvlist,
> -				RTE_CRYPTODEV_PMD_MAX_NB_SESS_ARG,
> -				&rte_cryptodev_pmd_parse_uint_arg,
> -				&params->max_nb_sessions);
> -		if (ret < 0)
> -			goto free_kvlist;
> -
>  		ret = rte_kvargs_process(kvlist,
>  				RTE_CRYPTODEV_PMD_SOCKET_ID_ARG,
>  				&rte_cryptodev_pmd_parse_uint_arg,
> @@ -109,10 +102,9 @@ rte_cryptodev_pmd_create(const char *name,
>  			device->driver->name, name);
>
>  	CDEV_LOG_INFO("[%s] - Initialisation parameters - name: %s,"
> -			"socket id: %d, max queue pairs: %u, max sessions: %u",
> +			"socket id: %d, max queue pairs: %u",
>  			device->driver->name, name,
> -			params->socket_id, params->max_nb_queue_pairs,
> -			params->max_nb_sessions);
> +			params->socket_id, params->max_nb_queue_pairs);
>
>  	/* allocate device structure */
>  	cryptodev = rte_cryptodev_pmd_allocate(name, params->socket_id);
> diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h
> index 69d776934..0739ce065 100644
> --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h
> +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h
> @@ -59,18 +59,15 @@ extern "C" {
>
>
>  #define RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS	8
> -#define RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS	2048
>
>  #define RTE_CRYPTODEV_PMD_NAME_ARG			("name")
>  #define RTE_CRYPTODEV_PMD_MAX_NB_QP_ARG			("max_nb_queue_pairs")
> -#define RTE_CRYPTODEV_PMD_MAX_NB_SESS_ARG		("max_nb_sessions")
>  #define RTE_CRYPTODEV_PMD_SOCKET_ID_ARG			("socket_id")
>
>
>  static const char * const cryptodev_pmd_valid_params[] = {
>  	RTE_CRYPTODEV_PMD_NAME_ARG,
>  	RTE_CRYPTODEV_PMD_MAX_NB_QP_ARG,
> -	RTE_CRYPTODEV_PMD_MAX_NB_SESS_ARG,
>  	RTE_CRYPTODEV_PMD_SOCKET_ID_ARG
>  };
>
> @@ -83,7 +80,6 @@ struct rte_cryptodev_pmd_init_params {
>  	size_t private_data_size;
>  	int socket_id;
>  	unsigned int max_nb_queue_pairs;
> -	unsigned int max_nb_sessions;
>  };
>
>  /** Global structure used for maintaining state of allocated crypto devices */
> diff --git a/test/test/test_cryptodev.c b/test/test/test_cryptodev.c
> index 389f79677..2c687bd7c 100644
> --- a/test/test/test_cryptodev.c
> +++ b/test/test/test_cryptodev.c
> @@ -39,6 +39,7 @@
>  #include "test_cryptodev_hmac_test_vectors.h"
>
>  #define VDEV_ARGS_SIZE 100
> +#define MAX_NB_SESSIONS            4
>
>  static int gbl_driver_id;
>
> @@ -437,7 +438,7 @@ testsuite_setup(void)
>  	 */
>  	ts_params->session_mpool = rte_mempool_create(
>  				"test_sess_mp",
> -				info.sym.max_nb_sessions * 2,
> +				MAX_NB_SESSIONS * 2,
>  				session_size,
>  				0, 0, NULL, NULL, NULL,
>  				NULL, SOCKET_ID_ANY,
> @@ -6499,10 +6500,10 @@ test_multi_session(void)
>
>  	sessions = rte_malloc(NULL,
>  			(sizeof(struct rte_cryptodev_sym_session *) *
> -			dev_info.sym.max_nb_sessions) + 1, 0);
> +			MAX_NB_SESSIONS) + 1, 0);
>
>  	/* Create multiple crypto sessions*/
> -	for (i = 0; i < dev_info.sym.max_nb_sessions; i++) {
> +	for (i = 0; i < MAX_NB_SESSIONS; i++) {
>
>  		sessions[i] = rte_cryptodev_sym_session_create(
>  				ts_params->session_mpool);
> @@ -6551,7 +6552,7 @@ test_multi_session(void)
>  	TEST_ASSERT_NULL(sessions[i],
>  			"Session creation succeeded unexpectedly!");
>
> -	for (i = 0; i < dev_info.sym.max_nb_sessions; i++) {
> +	for (i = 0; i < MAX_NB_SESSIONS; i++) {
>  		rte_cryptodev_sym_session_clear(ts_params->valid_devs[0],
>  				sessions[i]);
>  		rte_cryptodev_sym_session_free(sessions[i]);
> @@ -6610,7 +6611,7 @@ test_multi_session_random_usage(void)
>
>  	sessions = rte_malloc(NULL,
>  			(sizeof(struct rte_cryptodev_sym_session *)
> -					* dev_info.sym.max_nb_sessions) + 1, 0);
> +					* MAX_NB_SESSIONS) + 1, 0);
>
>  	for (i = 0; i < MB_SESSION_NUMBER; i++) {
>  		sessions[i] = rte_cryptodev_sym_session_create(
> @@ -8545,7 +8546,7 @@ test_scheduler_attach_slave_op(void)
>  		if (ts_params->session_mpool == NULL) {
>  			ts_params->session_mpool = rte_mempool_create(
>  					"test_sess_mp",
> -					info.sym.max_nb_sessions * 2,
> +					MAX_NB_SESSIONS * 2,
>  					session_size,
>  					0, 0, NULL, NULL, NULL,
>  					NULL, SOCKET_ID_ANY,
> --
> 2.17.0
>

--
- Tomasz Duszyński
Pablo de Lara June 12, 2018, 1:53 p.m. UTC | #2
> -----Original Message-----
> From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> Sent: Tuesday, June 12, 2018 12:38 PM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Cc: Doherty, Declan <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>;
> tdu@semihalf.com; jianjay.zhou@huawei.com; dev@dpdk.org
> Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> 
> Hello Pablo,
> 
> On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> > Sessions are not created and stored in the crypto device
> > anymore, since now the session mempool is created
> > at the application level.
> >
> > Therefore the limitation of the maximum number of sessions
> > that can be created should not be dependent of the crypto device.
> >
> > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>

...

> > diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > index 1b6029a56..822b6cac7 100644
> > --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> >  	internals = dev->data->dev_private;
> >
> >  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> > -	internals->max_nb_sessions = init_params->max_nb_sessions;
> >
> >  	/*
> >  	 * ret == -EEXIST is correct, it means DMA
> > @@ -734,8 +733,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> >  			"DMA memory has been already initialized by a
> different driver.");
> >  	}
> >
> > -	sam_params.max_num_sessions = internals->max_nb_sessions;
> 
> This will not fly since library maintains separate list of sessions.
> We have to initialize this number to something sane. Since we cannot
> get it from userspace perhaps make that compile-time configurable
> by adding separate CONFIG_?

Hi Tomasz,

If you need to have an actual limit, you could define it internally
(not adding an external configuration option), but bear in mind that
This won't prevent an application from trying to allocate more sessions.

If your PMD has a limitation on the maximum number of sessions, then maybe this change
won't work for you (removing the maximum number of sessions), so let me know and we can discuss this.

Thanks,
Pablo

P.S. Please, next time, strip out the code that you are not commenting, as it was hard to find this question :)
Tomasz Duszynski June 13, 2018, 6:11 a.m. UTC | #3
On Tue, Jun 12, 2018 at 01:53:36PM +0000, De Lara Guarch, Pablo wrote:
>
>
> > -----Original Message-----
> > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > Sent: Tuesday, June 12, 2018 12:38 PM
> > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > Cc: Doherty, Declan <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> > ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> > <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>;
> > tdu@semihalf.com; jianjay.zhou@huawei.com; dev@dpdk.org
> > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> >
> > Hello Pablo,
> >
> > On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> > > Sessions are not created and stored in the crypto device
> > > anymore, since now the session mempool is created
> > > at the application level.
> > >
> > > Therefore the limitation of the maximum number of sessions
> > > that can be created should not be dependent of the crypto device.
> > >
> > > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
>
> ...
>
> > > diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > index 1b6029a56..822b6cac7 100644
> > > --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> > >  	internals = dev->data->dev_private;
> > >
> > >  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> > > -	internals->max_nb_sessions = init_params->max_nb_sessions;
> > >
> > >  	/*
> > >  	 * ret == -EEXIST is correct, it means DMA
> > > @@ -734,8 +733,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> > >  			"DMA memory has been already initialized by a
> > different driver.");
> > >  	}
> > >
> > > -	sam_params.max_num_sessions = internals->max_nb_sessions;
> >
> > This will not fly since library maintains separate list of sessions.
> > We have to initialize this number to something sane. Since we cannot
> > get it from userspace perhaps make that compile-time configurable
> > by adding separate CONFIG_?
>
> Hi Tomasz,
>
> If you need to have an actual limit, you could define it internally
> (not adding an external configuration option), but bear in mind that
> This won't prevent an application from trying to allocate more sessions.

You can define arbitrary number of session on condition you have enough
memory. So no hard limit here. What bothers me is the case where
app wants to initialize more session than the library internally has.
If this happens userspace will get an error. On the other hand
requesting some arbitrary large number of session from library and
hoping app will never use so many wastes memory (which might be valuable
on resource constrained systems).

That is why keeping the number of sessions in app and library in sync
is important.

Do we have any option in DPDK now to workaround this?

>
> If your PMD has a limitation on the maximum number of sessions, then maybe this change
> won't work for you (removing the maximum number of sessions), so let me know and we can discuss this.
>
> Thanks,
> Pablo
>
> P.S. Please, next time, strip out the code that you are not commenting, as it was hard to find this question :)
>

--
- Tomasz Duszyński
Pablo de Lara June 13, 2018, 8:23 a.m. UTC | #4
Hi Tomasz,

> -----Original Message-----
> From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> Sent: Wednesday, June 13, 2018 7:12 AM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Cc: Tomasz Duszynski <tdu@semihalf.com>; Doherty, Declan
> <declan.doherty@intel.com>; akhil.goyal@nxp.com; ravi1.kumar@amd.com;
> jerin.jacob@caviumnetworks.com; Zhang, Roy Fan <roy.fan.zhang@intel.com>;
> Trahe, Fiona <fiona.trahe@intel.com>; jianjay.zhou@huawei.com;
> dev@dpdk.org
> Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> 
> On Tue, Jun 12, 2018 at 01:53:36PM +0000, De Lara Guarch, Pablo wrote:
> >
> >
> > > -----Original Message-----
> > > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > > Sent: Tuesday, June 12, 2018 12:38 PM
> > > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > > Cc: Doherty, Declan <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> > > ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> > > <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>;
> > > tdu@semihalf.com; jianjay.zhou@huawei.com; dev@dpdk.org
> > > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> > >
> > > Hello Pablo,
> > >
> > > On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> > > > Sessions are not created and stored in the crypto device anymore,
> > > > since now the session mempool is created at the application level.
> > > >
> > > > Therefore the limitation of the maximum number of sessions that
> > > > can be created should not be dependent of the crypto device.
> > > >
> > > > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> >
> > ...
> >
> > > > diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > index 1b6029a56..822b6cac7 100644
> > > > --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> > > >  	internals = dev->data->dev_private;
> > > >
> > > >  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> > > > -	internals->max_nb_sessions = init_params->max_nb_sessions;
> > > >
> > > >  	/*
> > > >  	 * ret == -EEXIST is correct, it means DMA @@ -734,8 +733,6 @@
> > > > cryptodev_mrvl_crypto_create(const char *name,
> > > >  			"DMA memory has been already initialized by a
> > > different driver.");
> > > >  	}
> > > >
> > > > -	sam_params.max_num_sessions = internals->max_nb_sessions;
> > >
> > > This will not fly since library maintains separate list of sessions.
> > > We have to initialize this number to something sane. Since we cannot
> > > get it from userspace perhaps make that compile-time configurable by
> > > adding separate CONFIG_?
> >
> > Hi Tomasz,
> >
> > If you need to have an actual limit, you could define it internally
> > (not adding an external configuration option), but bear in mind that
> > This won't prevent an application from trying to allocate more sessions.
> 
> You can define arbitrary number of session on condition you have enough
> memory. So no hard limit here. What bothers me is the case where app wants to
> initialize more session than the library internally has.
> If this happens userspace will get an error. On the other hand requesting some
> arbitrary large number of session from library and hoping app will never use so
> many wastes memory (which might be valuable on resource constrained
> systems).
> 
> That is why keeping the number of sessions in app and library in sync is
> important.
> 
> Do we have any option in DPDK now to workaround this?

Ok I see, so actually the MUSDK library needs a maximum number of sessions.
I'd say then we should keep this field, but we can add a special case: 0.
In this case, the PMD does not have any maximum number of sessions
(which would be applicable to most PMDs).

So, for this PMD, this special case is not supported. If 0 is passed,
either return that unlimited number of sessions is not supported,
or set it to a default value (defined inside the PMD, such as 2048).
If no value is passed, this number can be set to the default value too.

How does this sound?

Thanks,
Pablo


> 
> >
> > If your PMD has a limitation on the maximum number of sessions, then
> > maybe this change won't work for you (removing the maximum number of
> sessions), so let me know and we can discuss this.
> >
> > Thanks,
> > Pablo
> >
> > P.S. Please, next time, strip out the code that you are not
> > commenting, as it was hard to find this question :)
> >
> 
> --
> - Tomasz Duszyński
Tomasz Duszynski June 13, 2018, 10:11 a.m. UTC | #5
On Wed, Jun 13, 2018 at 08:23:36AM +0000, De Lara Guarch, Pablo wrote:
> Hi Tomasz,
>
> > -----Original Message-----
> > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > Sent: Wednesday, June 13, 2018 7:12 AM
> > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > Cc: Tomasz Duszynski <tdu@semihalf.com>; Doherty, Declan
> > <declan.doherty@intel.com>; akhil.goyal@nxp.com; ravi1.kumar@amd.com;
> > jerin.jacob@caviumnetworks.com; Zhang, Roy Fan <roy.fan.zhang@intel.com>;
> > Trahe, Fiona <fiona.trahe@intel.com>; jianjay.zhou@huawei.com;
> > dev@dpdk.org
> > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> >
> > On Tue, Jun 12, 2018 at 01:53:36PM +0000, De Lara Guarch, Pablo wrote:
> > >
> > >
> > > > -----Original Message-----
> > > > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > > > Sent: Tuesday, June 12, 2018 12:38 PM
> > > > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > > > Cc: Doherty, Declan <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> > > > ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> > > > <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>;
> > > > tdu@semihalf.com; jianjay.zhou@huawei.com; dev@dpdk.org
> > > > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> > > >
> > > > Hello Pablo,
> > > >
> > > > On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> > > > > Sessions are not created and stored in the crypto device anymore,
> > > > > since now the session mempool is created at the application level.
> > > > >
> > > > > Therefore the limitation of the maximum number of sessions that
> > > > > can be created should not be dependent of the crypto device.
> > > > >
> > > > > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> > >
> > > ...
> > >
> > > > > diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > index 1b6029a56..822b6cac7 100644
> > > > > --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> > > > >  	internals = dev->data->dev_private;
> > > > >
> > > > >  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> > > > > -	internals->max_nb_sessions = init_params->max_nb_sessions;
> > > > >
> > > > >  	/*
> > > > >  	 * ret == -EEXIST is correct, it means DMA @@ -734,8 +733,6 @@
> > > > > cryptodev_mrvl_crypto_create(const char *name,
> > > > >  			"DMA memory has been already initialized by a
> > > > different driver.");
> > > > >  	}
> > > > >
> > > > > -	sam_params.max_num_sessions = internals->max_nb_sessions;
> > > >
> > > > This will not fly since library maintains separate list of sessions.
> > > > We have to initialize this number to something sane. Since we cannot
> > > > get it from userspace perhaps make that compile-time configurable by
> > > > adding separate CONFIG_?
> > >
> > > Hi Tomasz,
> > >
> > > If you need to have an actual limit, you could define it internally
> > > (not adding an external configuration option), but bear in mind that
> > > This won't prevent an application from trying to allocate more sessions.
> >
> > You can define arbitrary number of session on condition you have enough
> > memory. So no hard limit here. What bothers me is the case where app wants to
> > initialize more session than the library internally has.
> > If this happens userspace will get an error. On the other hand requesting some
> > arbitrary large number of session from library and hoping app will never use so
> > many wastes memory (which might be valuable on resource constrained
> > systems).
> >
> > That is why keeping the number of sessions in app and library in sync is
> > important.
> >
> > Do we have any option in DPDK now to workaround this?
>
> Ok I see, so actually the MUSDK library needs a maximum number of sessions.
> I'd say then we should keep this field, but we can add a special case: 0.
> In this case, the PMD does not have any maximum number of sessions
> (which would be applicable to most PMDs).
>
> So, for this PMD, this special case is not supported. If 0 is passed,
> either return that unlimited number of sessions is not supported,
> or set it to a default value (defined inside the PMD, such as 2048).
> If no value is passed, this number can be set to the default value too.
>
> How does this sound?

Who is going to pass that value? App? Or the old way is retained
i.e PMD parameters?

OK, my understanding is that we have 3 options:

1. 0 is passed which for most of the drivers translates to "you should
   not care about sessions number created by userspace application". In
   case PMD supports that it returns either success or failure.

2. Nothing is passed which means PMD should not care about number of
   sessions except mvsam which sets some default value.

3. Passing some arbitrary value which which sets number of sessions
   for PMDs that care about that (mvsam). In that case app would
   respect that number and not allocate more than specified? This is
   what DPDK has now.

Right? Doesn't is sound like the mechanism that gets removed from DPDK with
some extra handling added?

Other solution might be to remove the old API as planned and change
the PMD itself so that it defers library initialization until
PMD is started. During session configuration necessary information
would be saved and reused later on (i.e during PMD start).

>
> Thanks,
> Pablo
>
>
> >
> > >
> > > If your PMD has a limitation on the maximum number of sessions, then
> > > maybe this change won't work for you (removing the maximum number of
> > sessions), so let me know and we can discuss this.
> > >
> > > Thanks,
> > > Pablo
> > >
> > > P.S. Please, next time, strip out the code that you are not
> > > commenting, as it was hard to find this question :)
> > >
> >
> > --
> > - Tomasz Duszyński

--
- Tomasz Duszyński
Trahe, Fiona June 19, 2018, 1:20 p.m. UTC | #6
Hi Tomasz, Pablo,

> -----Original Message-----
> From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> Sent: Wednesday, June 13, 2018 11:11 AM
> To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> Cc: Tomasz Duszynski <tdu@semihalf.com>; Doherty, Declan <declan.doherty@intel.com>;
> akhil.goyal@nxp.com; ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>; jianjay.zhou@huawei.com;
> dev@dpdk.org
> Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> 
> On Wed, Jun 13, 2018 at 08:23:36AM +0000, De Lara Guarch, Pablo wrote:
> > Hi Tomasz,
> >
> > > -----Original Message-----
> > > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > > Sent: Wednesday, June 13, 2018 7:12 AM
> > > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > > Cc: Tomasz Duszynski <tdu@semihalf.com>; Doherty, Declan
> > > <declan.doherty@intel.com>; akhil.goyal@nxp.com; ravi1.kumar@amd.com;
> > > jerin.jacob@caviumnetworks.com; Zhang, Roy Fan <roy.fan.zhang@intel.com>;
> > > Trahe, Fiona <fiona.trahe@intel.com>; jianjay.zhou@huawei.com;
> > > dev@dpdk.org
> > > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> > >
> > > On Tue, Jun 12, 2018 at 01:53:36PM +0000, De Lara Guarch, Pablo wrote:
> > > >
> > > >
> > > > > -----Original Message-----
> > > > > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > > > > Sent: Tuesday, June 12, 2018 12:38 PM
> > > > > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > > > > Cc: Doherty, Declan <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> > > > > ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> > > > > <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>;
> > > > > tdu@semihalf.com; jianjay.zhou@huawei.com; dev@dpdk.org
> > > > > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> > > > >
> > > > > Hello Pablo,
> > > > >
> > > > > On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> > > > > > Sessions are not created and stored in the crypto device anymore,
> > > > > > since now the session mempool is created at the application level.
> > > > > >
> > > > > > Therefore the limitation of the maximum number of sessions that
> > > > > > can be created should not be dependent of the crypto device.
> > > > > >
> > > > > > Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
> > > >
> > > > ...
> > > >
> > > > > > diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > index 1b6029a56..822b6cac7 100644
> > > > > > --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> > > > > >  	internals = dev->data->dev_private;
> > > > > >
> > > > > >  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> > > > > > -	internals->max_nb_sessions = init_params->max_nb_sessions;
> > > > > >
> > > > > >  	/*
> > > > > >  	 * ret == -EEXIST is correct, it means DMA @@ -734,8 +733,6 @@
> > > > > > cryptodev_mrvl_crypto_create(const char *name,
> > > > > >  			"DMA memory has been already initialized by a
> > > > > different driver.");
> > > > > >  	}
> > > > > >
> > > > > > -	sam_params.max_num_sessions = internals->max_nb_sessions;
> > > > >
> > > > > This will not fly since library maintains separate list of sessions.
> > > > > We have to initialize this number to something sane. Since we cannot
> > > > > get it from userspace perhaps make that compile-time configurable by
> > > > > adding separate CONFIG_?
> > > >
> > > > Hi Tomasz,
> > > >
> > > > If you need to have an actual limit, you could define it internally
> > > > (not adding an external configuration option), but bear in mind that
> > > > This won't prevent an application from trying to allocate more sessions.
> > >
> > > You can define arbitrary number of session on condition you have enough
> > > memory. So no hard limit here. What bothers me is the case where app wants to
> > > initialize more session than the library internally has.
> > > If this happens userspace will get an error. On the other hand requesting some
> > > arbitrary large number of session from library and hoping app will never use so
> > > many wastes memory (which might be valuable on resource constrained
> > > systems).
> > >
> > > That is why keeping the number of sessions in app and library in sync is
> > > important.
> > >
> > > Do we have any option in DPDK now to workaround this?
> >
> > Ok I see, so actually the MUSDK library needs a maximum number of sessions.
> > I'd say then we should keep this field, but we can add a special case: 0.
> > In this case, the PMD does not have any maximum number of sessions
> > (which would be applicable to most PMDs).
> >
> > So, for this PMD, this special case is not supported. If 0 is passed,
> > either return that unlimited number of sessions is not supported,
> > or set it to a default value (defined inside the PMD, such as 2048).
> > If no value is passed, this number can be set to the default value too.
> >
> > How does this sound?
> 
> Who is going to pass that value? App? Or the old way is retained
> i.e PMD parameters?
> 
> OK, my understanding is that we have 3 options:
> 
> 1. 0 is passed which for most of the drivers translates to "you should
>    not care about sessions number created by userspace application". In
>    case PMD supports that it returns either success or failure.
> 
> 2. Nothing is passed which means PMD should not care about number of
>    sessions except mvsam which sets some default value.
> 
> 3. Passing some arbitrary value which which sets number of sessions
>    for PMDs that care about that (mvsam). In that case app would
>    respect that number and not allocate more than specified? This is
>    what DPDK has now.
> 
> Right? Doesn't is sound like the mechanism that gets removed from DPDK with
> some extra handling added?
> 
> Other solution might be to remove the old API as planned and change
> the PMD itself so that it defers library initialization until
> PMD is started. During session configuration necessary information
> would be saved and reused later on (i.e during PMD start).
> 
[Fiona] I'd suggest we keep max_nb_sessions in the info struct.
mvsam - or any other PMD which wants an internal PMD limit - 
should set it via hard-coding or a PMD-specific item in the config file. 
For all other PMDs currently which don't have a limit the 
config file item can be removed. For these, 0, indicating No Limit, should be
returned in the info struct. 
But I think it's optional what an app does with this max_nb_sessions.
It could take it into account and create a session pool of (max_nb_sessions * num_PMDs)
and be careful not to send more than max_nb_sessions to a PMD with a limit.
Or it could just ignore it, create whatever size session pool it wants and if it calls 
rte_cryptodev_sym_session_init() too many times on a PMD handle the -ENOMEM which I'd expect the PMD to return. Possibly route the session to a different device with available resources.
Does that work for everyone?



> >
> > Thanks,
> > Pablo
> >
> >
> > >
> > > >
> > > > If your PMD has a limitation on the maximum number of sessions, then
> > > > maybe this change won't work for you (removing the maximum number of
> > > sessions), so let me know and we can discuss this.
> > > >
> > > > Thanks,
> > > > Pablo
> > > >
> > > > P.S. Please, next time, strip out the code that you are not
> > > > commenting, as it was hard to find this question :)
> > > >
> > >
> > > --
> > > - Tomasz Duszyński
> 
> --
> - Tomasz Duszyński
Pablo de Lara June 25, 2018, 4:42 p.m. UTC | #7
> -----Original Message-----
> From: Trahe, Fiona
> Sent: Tuesday, June 19, 2018 2:20 PM
> To: Tomasz Duszynski <tdu@semihalf.com>; De Lara Guarch, Pablo
> <pablo.de.lara.guarch@intel.com>
> Cc: Doherty, Declan <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> <roy.fan.zhang@intel.com>; jianjay.zhou@huawei.com; dev@dpdk.org; Trahe,
> Fiona <fiona.trahe@intel.com>
> Subject: RE: [PATCH 3/6] cryptodev: remove max number of sessions
> 
> Hi Tomasz, Pablo,
> 
> > -----Original Message-----
> > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > Sent: Wednesday, June 13, 2018 11:11 AM
> > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > Cc: Tomasz Duszynski <tdu@semihalf.com>; Doherty, Declan
> > <declan.doherty@intel.com>; akhil.goyal@nxp.com; ravi1.kumar@amd.com;
> > jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> > <roy.fan.zhang@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>;
> > jianjay.zhou@huawei.com; dev@dpdk.org
> > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> >
> > On Wed, Jun 13, 2018 at 08:23:36AM +0000, De Lara Guarch, Pablo wrote:
> > > Hi Tomasz,
> > >
> > > > -----Original Message-----
> > > > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > > > Sent: Wednesday, June 13, 2018 7:12 AM
> > > > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > > > Cc: Tomasz Duszynski <tdu@semihalf.com>; Doherty, Declan
> > > > <declan.doherty@intel.com>; akhil.goyal@nxp.com;
> > > > ravi1.kumar@amd.com; jerin.jacob@caviumnetworks.com; Zhang, Roy
> > > > Fan <roy.fan.zhang@intel.com>; Trahe, Fiona
> > > > <fiona.trahe@intel.com>; jianjay.zhou@huawei.com; dev@dpdk.org
> > > > Subject: Re: [PATCH 3/6] cryptodev: remove max number of sessions
> > > >
> > > > On Tue, Jun 12, 2018 at 01:53:36PM +0000, De Lara Guarch, Pablo wrote:
> > > > >
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Tomasz Duszynski [mailto:tdu@semihalf.com]
> > > > > > Sent: Tuesday, June 12, 2018 12:38 PM
> > > > > > To: De Lara Guarch, Pablo <pablo.de.lara.guarch@intel.com>
> > > > > > Cc: Doherty, Declan <declan.doherty@intel.com>;
> > > > > > akhil.goyal@nxp.com; ravi1.kumar@amd.com;
> > > > > > jerin.jacob@caviumnetworks.com; Zhang, Roy Fan
> > > > > > <roy.fan.zhang@intel.com>; Trahe, Fiona
> > > > > > <fiona.trahe@intel.com>; tdu@semihalf.com;
> > > > > > jianjay.zhou@huawei.com; dev@dpdk.org
> > > > > > Subject: Re: [PATCH 3/6] cryptodev: remove max number of
> > > > > > sessions
> > > > > >
> > > > > > Hello Pablo,
> > > > > >
> > > > > > On Fri, Jun 08, 2018 at 11:02:31PM +0100, Pablo de Lara wrote:
> > > > > > > Sessions are not created and stored in the crypto device
> > > > > > > anymore, since now the session mempool is created at the
> application level.
> > > > > > >
> > > > > > > Therefore the limitation of the maximum number of sessions
> > > > > > > that can be created should not be dependent of the crypto device.
> > > > > > >
> > > > > > > Signed-off-by: Pablo de Lara
> > > > > > > <pablo.de.lara.guarch@intel.com>
> > > > >
> > > > > ...
> > > > >
> > > > > > > diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > > index 1b6029a56..822b6cac7 100644
> > > > > > > --- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > > +++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
> > > > > > > @@ -719,7 +719,6 @@ cryptodev_mrvl_crypto_create(const char
> *name,
> > > > > > >  	internals = dev->data->dev_private;
> > > > > > >
> > > > > > >  	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
> > > > > > > -	internals->max_nb_sessions = init_params->max_nb_sessions;
> > > > > > >
> > > > > > >  	/*
> > > > > > >  	 * ret == -EEXIST is correct, it means DMA @@ -734,8
> > > > > > > +733,6 @@ cryptodev_mrvl_crypto_create(const char *name,
> > > > > > >  			"DMA memory has been already initialized by a
> > > > > > different driver.");
> > > > > > >  	}
> > > > > > >
> > > > > > > -	sam_params.max_num_sessions = internals->max_nb_sessions;
> > > > > >
> > > > > > This will not fly since library maintains separate list of sessions.
> > > > > > We have to initialize this number to something sane. Since we
> > > > > > cannot get it from userspace perhaps make that compile-time
> > > > > > configurable by adding separate CONFIG_?
> > > > >
> > > > > Hi Tomasz,
> > > > >
> > > > > If you need to have an actual limit, you could define it
> > > > > internally (not adding an external configuration option), but
> > > > > bear in mind that This won't prevent an application from trying to
> allocate more sessions.
> > > >
> > > > You can define arbitrary number of session on condition you have
> > > > enough memory. So no hard limit here. What bothers me is the case
> > > > where app wants to initialize more session than the library internally has.
> > > > If this happens userspace will get an error. On the other hand
> > > > requesting some arbitrary large number of session from library and
> > > > hoping app will never use so many wastes memory (which might be
> > > > valuable on resource constrained systems).
> > > >
> > > > That is why keeping the number of sessions in app and library in
> > > > sync is important.
> > > >
> > > > Do we have any option in DPDK now to workaround this?
> > >
> > > Ok I see, so actually the MUSDK library needs a maximum number of
> sessions.
> > > I'd say then we should keep this field, but we can add a special case: 0.
> > > In this case, the PMD does not have any maximum number of sessions
> > > (which would be applicable to most PMDs).
> > >
> > > So, for this PMD, this special case is not supported. If 0 is
> > > passed, either return that unlimited number of sessions is not
> > > supported, or set it to a default value (defined inside the PMD, such as 2048).
> > > If no value is passed, this number can be set to the default value too.
> > >
> > > How does this sound?
> >
> > Who is going to pass that value? App? Or the old way is retained i.e
> > PMD parameters?
> >
> > OK, my understanding is that we have 3 options:
> >
> > 1. 0 is passed which for most of the drivers translates to "you should
> >    not care about sessions number created by userspace application". In
> >    case PMD supports that it returns either success or failure.
> >
> > 2. Nothing is passed which means PMD should not care about number of
> >    sessions except mvsam which sets some default value.
> >
> > 3. Passing some arbitrary value which which sets number of sessions
> >    for PMDs that care about that (mvsam). In that case app would
> >    respect that number and not allocate more than specified? This is
> >    what DPDK has now.
> >
> > Right? Doesn't is sound like the mechanism that gets removed from DPDK
> > with some extra handling added?
> >
> > Other solution might be to remove the old API as planned and change
> > the PMD itself so that it defers library initialization until PMD is
> > started. During session configuration necessary information would be
> > saved and reused later on (i.e during PMD start).
> >
> [Fiona] I'd suggest we keep max_nb_sessions in the info struct.
> mvsam - or any other PMD which wants an internal PMD limit - should set it via
> hard-coding or a PMD-specific item in the config file.
> For all other PMDs currently which don't have a limit the config file item can be
> removed. For these, 0, indicating No Limit, should be returned in the info struct.
> But I think it's optional what an app does with this max_nb_sessions.
> It could take it into account and create a session pool of (max_nb_sessions *
> num_PMDs) and be careful not to send more than max_nb_sessions to a PMD
> with a limit.
> Or it could just ignore it, create whatever size session pool it wants and if it calls
> rte_cryptodev_sym_session_init() too many times on a PMD handle the -
> ENOMEM which I'd expect the PMD to return. Possibly route the session to a
> different device with available resources.
> Does that work for everyone?

I will send a new version of this patchset, addressing these comments.
MVSAM PMD will still be able to set max_nb_sessions to a defined value and
rest of the PMDs (except for DPAA) will set this value to 0, indicating that
they have no limit in the amount of sessions.

Thanks,
Pablo
i

Patch
diff mbox series

diff --git a/config/common_base b/config/common_base
index 6b0d1cbbb..db6dec335 100644
--- a/config/common_base
+++ b/config/common_base
@@ -473,14 +473,12 @@  CONFIG_RTE_LIBRTE_PMD_ARMV8_CRYPTO_DEBUG=n
 # Compile NXP DPAA2 crypto sec driver for CAAM HW
 #
 CONFIG_RTE_LIBRTE_PMD_DPAA2_SEC=n
-CONFIG_RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS=2048
 
 #
 # NXP DPAA caam - crypto driver
 #
 CONFIG_RTE_LIBRTE_PMD_DPAA_SEC=n
 CONFIG_RTE_LIBRTE_DPAA_MAX_CRYPTODEV=4
-CONFIG_RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS=2048
 
 #
 # Compile PMD for QuickAssist based devices
@@ -490,11 +488,6 @@  CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_INIT=n
 CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_TX=n
 CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_RX=n
 CONFIG_RTE_LIBRTE_PMD_QAT_DEBUG_DRIVER=n
-#
-# Number of sessions to create in the session memory pool
-# on a single QuickAssist device.
-#
-CONFIG_RTE_QAT_PMD_MAX_NB_SESSIONS=2048
 
 #
 # Compile PMD for virtio crypto devices
@@ -504,11 +497,6 @@  CONFIG_RTE_LIBRTE_PMD_VIRTIO_CRYPTO=y
 # Number of maximum virtio crypto devices
 #
 CONFIG_RTE_MAX_VIRTIO_CRYPTO=32
-#
-# Number of sessions to create in the session memory pool
-# on a single virtio crypto device.
-#
-CONFIG_RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS=1024
 
 #
 # Compile PMD for AESNI backed device
diff --git a/config/rte_config.h b/config/rte_config.h
index a1d01759e..7261d28d6 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -85,23 +85,9 @@ 
 
 /****** driver defines ********/
 
-/*
- * Number of sessions to create in the session memory pool
- * on a single instance of crypto HW device.
- */
-/* QuickAssist device */
-#define RTE_QAT_PMD_MAX_NB_SESSIONS 2048
-
 /* virtio crypto defines */
-#define RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS 1024
 #define RTE_MAX_VIRTIO_CRYPTO 32
 
-/* DPAA2_SEC */
-#define RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS 2048
-
-/* DPAA_SEC */
-#define RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS 2048
-
 /* DPAA SEC max cryptodev devices*/
 #define RTE_LIBRTE_DPAA_MAX_CRYPTODEV	4
 
diff --git a/doc/guides/cryptodevs/aesni_gcm.rst b/doc/guides/cryptodevs/aesni_gcm.rst
index 01590e850..2cfd1e9f7 100644
--- a/doc/guides/cryptodevs/aesni_gcm.rst
+++ b/doc/guides/cryptodevs/aesni_gcm.rst
@@ -83,11 +83,9 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_gcm,socket_id=0,max_nb_sessions=128" \
+    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_gcm,socket_id=0" \
     -- -p 1 --cdev SW --chain AEAD --aead_algo "aes-gcm"
diff --git a/doc/guides/cryptodevs/aesni_mb.rst b/doc/guides/cryptodevs/aesni_mb.rst
index 236828c0a..a0602a10d 100644
--- a/doc/guides/cryptodevs/aesni_mb.rst
+++ b/doc/guides/cryptodevs/aesni_mb.rst
@@ -106,13 +106,11 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_mb,socket_id=0,max_nb_sessions=128" \
+    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_aesni_mb,socket_id=0" \
     -- -p 1 --cdev SW --chain CIPHER_HASH --cipher_algo "aes-cbc" --auth_algo "sha1-hmac"
 
 Extra notes
diff --git a/doc/guides/cryptodevs/armv8.rst b/doc/guides/cryptodevs/armv8.rst
index 725398daf..4adf3cf40 100644
--- a/doc/guides/cryptodevs/armv8.rst
+++ b/doc/guides/cryptodevs/armv8.rst
@@ -64,7 +64,6 @@  For performance test cryptodev_sw_armv8_perftest can be used.
 Limitations
 -----------
 
-* Maximum number of sessions is 2048.
 * Only chained operations are supported.
 * AES-128-CBC is the only supported cipher variant.
 * Cipher input data has to be a multiple of 16 bytes.
diff --git a/doc/guides/cryptodevs/ccp.rst b/doc/guides/cryptodevs/ccp.rst
index 034d20367..d577d5a1c 100644
--- a/doc/guides/cryptodevs/ccp.rst
+++ b/doc/guides/cryptodevs/ccp.rst
@@ -101,8 +101,6 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device.
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 * ccp_auth_opt: Specify authentication operations to perform on CPU using openssl APIs.
 
 To validate ccp pmd, l2fwd-crypto example can be used with following command:
diff --git a/doc/guides/cryptodevs/dpaa2_sec.rst b/doc/guides/cryptodevs/dpaa2_sec.rst
index 3ea24c8aa..990befeb7 100644
--- a/doc/guides/cryptodevs/dpaa2_sec.rst
+++ b/doc/guides/cryptodevs/dpaa2_sec.rst
@@ -200,11 +200,6 @@  Please note that enabling debugging options may affect system performance.
   By default it is only enabled in defconfig_arm64-dpaa2-* config.
   Toggle compilation of the ``librte_pmd_dpaa2_sec`` driver.
 
-* ``CONFIG_RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS``
-  By default it is set as 2048 in defconfig_arm64-dpaa2-* config.
-  It indicates Number of sessions to create in the session memory pool
-  on a single DPAA2 SEC device.
-
 Installations
 -------------
 To compile the DPAA2_SEC PMD for Linux arm64 gcc target, run the
diff --git a/doc/guides/cryptodevs/dpaa_sec.rst b/doc/guides/cryptodevs/dpaa_sec.rst
index c14d6d7b1..c5097a84f 100644
--- a/doc/guides/cryptodevs/dpaa_sec.rst
+++ b/doc/guides/cryptodevs/dpaa_sec.rst
@@ -145,11 +145,6 @@  Please note that enabling debugging options may affect system performance.
   By default it is only enabled in defconfig_arm64-dpaa-* config.
   Toggle compilation of the ``librte_pmd_dpaa_sec`` driver.
 
-* ``CONFIG_RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS``
-  By default it is set as 2048 in defconfig_arm64-dpaa-* config.
-  It indicates Number of sessions to create in the session memory pool
-  on a single DPAA SEC device.
-
 Installations
 -------------
 To compile the DPAA_SEC PMD for Linux arm64 gcc target, run the
diff --git a/doc/guides/cryptodevs/kasumi.rst b/doc/guides/cryptodevs/kasumi.rst
index 2265eee4e..74bc4d840 100644
--- a/doc/guides/cryptodevs/kasumi.rst
+++ b/doc/guides/cryptodevs/kasumi.rst
@@ -87,13 +87,11 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_kasumi,socket_id=0,max_nb_sessions=128" \
+    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_kasumi,socket_id=0" \
     -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "kasumi-f8"
 
 Extra notes on KASUMI F9
diff --git a/doc/guides/cryptodevs/mvsam.rst b/doc/guides/cryptodevs/mvsam.rst
index fd418c264..b91bb0fb6 100644
--- a/doc/guides/cryptodevs/mvsam.rst
+++ b/doc/guides/cryptodevs/mvsam.rst
@@ -115,7 +115,6 @@  loaded:
 The following parameters (all optional) are exported by the driver:
 
 * max_nb_queue_pairs: maximum number of queue pairs in the device (8 by default).
-* max_nb_sessions: maximum number of sessions that can be created (2048 by default).
 * socket_id: socket on which to allocate the device resources on.
 
 l2fwd-crypto example application can be used to verify MVSAM CRYPTO PMD
diff --git a/doc/guides/cryptodevs/null.rst b/doc/guides/cryptodevs/null.rst
index c980e0ac8..ca39fe444 100644
--- a/doc/guides/cryptodevs/null.rst
+++ b/doc/guides/cryptodevs/null.rst
@@ -61,11 +61,9 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_null,socket_id=0,max_nb_sessions=128" \
+    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_null,socket_id=0" \
     -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "null"
diff --git a/doc/guides/cryptodevs/openssl.rst b/doc/guides/cryptodevs/openssl.rst
index 427fc807c..153ad0657 100644
--- a/doc/guides/cryptodevs/openssl.rst
+++ b/doc/guides/cryptodevs/openssl.rst
@@ -98,7 +98,6 @@  To verify real traffic l2fwd-crypto example can be used with this command:
 Limitations
 -----------
 
-* Maximum number of sessions is 2048.
 * Chained mbufs are supported only for source mbuf (destination must be
   contiguous).
 * Hash only is not supported for GCM and GMAC.
diff --git a/doc/guides/cryptodevs/scheduler.rst b/doc/guides/cryptodevs/scheduler.rst
index d67894d55..e266ec5a3 100644
--- a/doc/guides/cryptodevs/scheduler.rst
+++ b/doc/guides/cryptodevs/scheduler.rst
@@ -58,10 +58,6 @@  two calls:
   to be allocated (by default, socket_id will be the socket where the core
   that is creating the PMD is running on).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be
-  created. This value may be overwritten internally if there are too
-  many devices are attached.
-
 * slave: If a cryptodev has been initialized with specific name, it can be
   attached to the scheduler using this parameter, simply filling the name
   here. Multiple cryptodevs can be attached initially by presenting this
diff --git a/doc/guides/cryptodevs/snow3g.rst b/doc/guides/cryptodevs/snow3g.rst
index 7cba712c1..e0b9a73f7 100644
--- a/doc/guides/cryptodevs/snow3g.rst
+++ b/doc/guides/cryptodevs/snow3g.rst
@@ -79,11 +79,9 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_snow3g,socket_id=0,max_nb_sessions=128" \
+    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_snow3g,socket_id=0" \
     -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "snow3g-uea2"
diff --git a/doc/guides/cryptodevs/zuc.rst b/doc/guides/cryptodevs/zuc.rst
index e38989968..7bebbb48b 100644
--- a/doc/guides/cryptodevs/zuc.rst
+++ b/doc/guides/cryptodevs/zuc.rst
@@ -79,11 +79,9 @@  The following parameters (all optional) can be provided in the previous two call
 
 * max_nb_queue_pairs: Specify the maximum number of queue pairs in the device (8 by default).
 
-* max_nb_sessions: Specify the maximum number of sessions that can be created (2048 by default).
-
 Example:
 
 .. code-block:: console
 
-    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_zuc,socket_id=0,max_nb_sessions=128" \
+    ./l2fwd-crypto -l 1 -n 4 --vdev="crypto_zuc,socket_id=0" \
     -- -p 1 --cdev SW --chain CIPHER_ONLY --cipher_algo "zuc-eea3"
diff --git a/doc/guides/prog_guide/cryptodev_lib.rst b/doc/guides/prog_guide/cryptodev_lib.rst
index d02bb7514..c83184fe9 100644
--- a/doc/guides/prog_guide/cryptodev_lib.rst
+++ b/doc/guides/prog_guide/cryptodev_lib.rst
@@ -41,7 +41,7 @@  From the command line using the --vdev EAL option
 
 .. code-block:: console
 
-   --vdev  'crypto_aesni_mb0,max_nb_queue_pairs=2,max_nb_sessions=1024,socket_id=0'
+   --vdev  'crypto_aesni_mb0,max_nb_queue_pairs=2,socket_id=0'
 
 .. Note::
 
@@ -57,12 +57,11 @@  Our using the rte_vdev_init API within the application code.
 .. code-block:: c
 
    rte_vdev_init("crypto_aesni_mb",
-                     "max_nb_queue_pairs=2,max_nb_sessions=1024,socket_id=0")
+                     "max_nb_queue_pairs=2,socket_id=0")
 
 All virtual Crypto devices support the following initialization parameters:
 
 * ``max_nb_queue_pairs`` - maximum number of queue pairs supported by the device.
-* ``max_nb_sessions`` - maximum number of sessions supported by the device
 * ``socket_id`` - socket on which to allocate the device resources on.
 
 
@@ -276,10 +275,6 @@  relevant information for the device.
         const struct rte_cryptodev_capabilities *capabilities;
 
         unsigned max_nb_queue_pairs;
-
-        struct {
-            unsigned max_nb_sessions;
-        } sym;
     };
 
 
diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index b71080bb8..dc014da21 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -101,9 +101,6 @@  Deprecation Notices
 * cryptodev: The following changes will be made in the library
   for 18.08:
 
-  - Removal of ``sym`` structure in ``rte_cryptodev_info`` structure,
-    containing fields not relevant anymore since the session mempool
-    is not internal in the crypto device anymore.
   - Functions ``rte_cryptodev_queue_pair_attach_sym_session()`` and
     ``rte_cryptodev_queue_pair_dettach_sym_session()`` will be deprecated from
     18.05 and removed in 18.08, as there are no drivers doing anything useful
diff --git a/doc/guides/rel_notes/release_18_08.rst b/doc/guides/rel_notes/release_18_08.rst
index ba710e845..a6f31713a 100644
--- a/doc/guides/rel_notes/release_18_08.rst
+++ b/doc/guides/rel_notes/release_18_08.rst
@@ -56,7 +56,8 @@  API Changes
    =========================================================
 
 * cryptodev: In struct ``struct rte_cryptodev_info``, field ``rte_pci_device *pci_dev``
-  has been replaced with field ``struct rte_device *device``.
+  has been replaced with field ``struct rte_device *device`` and
+  field ``sym`` has been removed.
 
 
 ABI Changes
diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
index 80360dd9c..cd5b1952b 100644
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd.c
@@ -513,7 +513,6 @@  aesni_gcm_create(const char *name,
 	internals->vector_mode = vector_mode;
 
 	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 }
@@ -525,8 +524,7 @@  aesni_gcm_probe(struct rte_vdev_device *vdev)
 		"",
 		sizeof(struct aesni_gcm_private),
 		rte_socket_id(),
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 	};
 	const char *name;
 	const char *input_args;
@@ -568,7 +566,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_GCM_PMD, aesni_gcm_pmd_drv);
 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_GCM_PMD, cryptodev_aesni_gcm_pmd);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_GCM_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(aesni_gcm_crypto_drv, aesni_gcm_pmd_drv.driver,
 		cryptodev_driver_id);
diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
index 6f542137c..b05122c1b 100644
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_ops.c
@@ -143,7 +143,6 @@  aesni_gcm_pmd_info_get(struct rte_cryptodev *dev,
 		dev_info->capabilities = aesni_gcm_pmd_capabilities;
 
 		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 	}
 }
 
diff --git a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h
index 3d60583b0..b496377dd 100644
--- a/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h
+++ b/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h
@@ -39,8 +39,6 @@  struct aesni_gcm_private {
 	/**< Vector mode */
 	unsigned max_nb_queue_pairs;
 	/**< Max number of queue pairs supported by device */
-	unsigned max_nb_sessions;
-	/**< Max number of sessions supported by device */
 };
 
 struct aesni_gcm_qp {
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
index bb35c66ab..bb647f736 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd.c
@@ -885,7 +885,6 @@  cryptodev_aesni_mb_create(const char *name,
 
 	internals->vector_mode = vector_mode;
 	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 }
@@ -897,8 +896,7 @@  cryptodev_aesni_mb_probe(struct rte_vdev_device *vdev)
 		"",
 		sizeof(struct aesni_mb_private),
 		rte_socket_id(),
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 	};
 	const char *name, *args;
 	int retval;
@@ -947,7 +945,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd_drv);
 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_AESNI_MB_PMD, cryptodev_aesni_mb_pmd);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_AESNI_MB_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(aesni_mb_crypto_drv,
 		cryptodev_aesni_mb_pmd_drv.driver,
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
index 01530523f..7c735f5dc 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_ops.c
@@ -387,7 +387,6 @@  aesni_mb_pmd_info_get(struct rte_cryptodev *dev,
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = aesni_mb_pmd_capabilities;
 		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 	}
 }
 
diff --git a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
index a33b2f695..9520cdf9c 100644
--- a/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
+++ b/drivers/crypto/aesni_mb/rte_aesni_mb_pmd_private.h
@@ -124,8 +124,6 @@  struct aesni_mb_private {
 	/**< CPU vector instruction set mode */
 	unsigned max_nb_queue_pairs;
 	/**< Max number of queue pairs supported by device */
-	unsigned max_nb_sessions;
-	/**< Max number of sessions supported by device */
 };
 
 /** AESNI Multi buffer queue pair */
diff --git a/drivers/crypto/armv8/rte_armv8_pmd.c b/drivers/crypto/armv8/rte_armv8_pmd.c
index fbb08f729..db0d8a2a9 100644
--- a/drivers/crypto/armv8/rte_armv8_pmd.c
+++ b/drivers/crypto/armv8/rte_armv8_pmd.c
@@ -779,7 +779,6 @@  cryptodev_armv8_crypto_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 
@@ -800,8 +799,7 @@  cryptodev_armv8_crypto_init(struct rte_vdev_device *vdev)
 		"",
 		sizeof(struct armv8_crypto_private),
 		rte_socket_id(),
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 	};
 	const char *name;
 	const char *input_args;
@@ -848,7 +846,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_ARMV8_PMD, armv8_crypto_pmd_drv);
 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_ARMV8_PMD, cryptodev_armv8_pmd);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_ARMV8_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(armv8_crypto_drv, armv8_crypto_pmd_drv.driver,
 		cryptodev_driver_id);
diff --git a/drivers/crypto/armv8/rte_armv8_pmd_ops.c b/drivers/crypto/armv8/rte_armv8_pmd_ops.c
index c64aef09f..d31ef7d66 100644
--- a/drivers/crypto/armv8/rte_armv8_pmd_ops.c
+++ b/drivers/crypto/armv8/rte_armv8_pmd_ops.c
@@ -154,7 +154,6 @@  armv8_crypto_pmd_info_get(struct rte_cryptodev *dev,
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = armv8_crypto_pmd_capabilities;
 		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 	}
 }
 
diff --git a/drivers/crypto/armv8/rte_armv8_pmd_private.h b/drivers/crypto/armv8/rte_armv8_pmd_private.h
index b8966e934..7feb021db 100644
--- a/drivers/crypto/armv8/rte_armv8_pmd_private.h
+++ b/drivers/crypto/armv8/rte_armv8_pmd_private.h
@@ -106,8 +106,6 @@  typedef void (*crypto_key_sched_t)(uint8_t *, const uint8_t *);
 struct armv8_crypto_private {
 	unsigned int max_nb_qpairs;
 	/**< Max number of queue pairs */
-	unsigned int max_nb_sessions;
-	/**< Max number of sessions */
 };
 
 /** ARMv8 crypto queue pair */
diff --git a/drivers/crypto/ccp/ccp_pmd_ops.c b/drivers/crypto/ccp/ccp_pmd_ops.c
index 80b75ccb0..7e383feed 100644
--- a/drivers/crypto/ccp/ccp_pmd_ops.c
+++ b/drivers/crypto/ccp/ccp_pmd_ops.c
@@ -624,7 +624,6 @@  ccp_pmd_info_get(struct rte_cryptodev *dev,
 		if (internals->auth_opt == 1)
 			dev_info->capabilities = ccp_crypto_cap_complete;
 		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 	}
 }
 
diff --git a/drivers/crypto/ccp/ccp_pmd_private.h b/drivers/crypto/ccp/ccp_pmd_private.h
index f4498048f..79752f687 100644
--- a/drivers/crypto/ccp/ccp_pmd_private.h
+++ b/drivers/crypto/ccp/ccp_pmd_private.h
@@ -40,7 +40,6 @@ 
 /* private data structure for each CCP crypto device */
 struct ccp_private {
 	unsigned int max_nb_qpairs;	/**< Max number of queue pairs */
-	unsigned int max_nb_sessions;	/**< Max number of sessions */
 	uint8_t crypto_num_dev;		/**< Number of working crypto devices */
 	bool auth_opt;			/**< Authentication offload option */
 	struct ccp_device *last_dev;	/**< Last working crypto device */
diff --git a/drivers/crypto/ccp/rte_ccp_pmd.c b/drivers/crypto/ccp/rte_ccp_pmd.c
index 2061f465e..d70640f6d 100644
--- a/drivers/crypto/ccp/rte_ccp_pmd.c
+++ b/drivers/crypto/ccp/rte_ccp_pmd.c
@@ -30,14 +30,12 @@  struct ccp_pmd_init_params {
 #define CCP_CRYPTODEV_PARAM_NAME		("name")
 #define CCP_CRYPTODEV_PARAM_SOCKET_ID		("socket_id")
 #define CCP_CRYPTODEV_PARAM_MAX_NB_QP		("max_nb_queue_pairs")
-#define CCP_CRYPTODEV_PARAM_MAX_NB_SESS		("max_nb_sessions")
 #define CCP_CRYPTODEV_PARAM_AUTH_OPT		("ccp_auth_opt")
 
 const char *ccp_pmd_valid_params[] = {
 	CCP_CRYPTODEV_PARAM_NAME,
 	CCP_CRYPTODEV_PARAM_SOCKET_ID,
 	CCP_CRYPTODEV_PARAM_MAX_NB_QP,
-	CCP_CRYPTODEV_PARAM_MAX_NB_SESS,
 	CCP_CRYPTODEV_PARAM_AUTH_OPT,
 };
 
@@ -124,13 +122,6 @@  ccp_pmd_parse_input_args(struct ccp_pmd_init_params *params,
 		if (ret < 0)
 			goto free_kvlist;
 
-		ret = rte_kvargs_process(kvlist,
-					 CCP_CRYPTODEV_PARAM_MAX_NB_SESS,
-					 &parse_integer_arg,
-					 &params->def_p.max_nb_sessions);
-		if (ret < 0)
-			goto free_kvlist;
-
 		ret = rte_kvargs_process(kvlist,
 					 CCP_CRYPTODEV_PARAM_SOCKET_ID,
 					 &parse_integer_arg,
@@ -334,7 +325,6 @@  cryptodev_ccp_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_qpairs = init_params->def_p.max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->def_p.max_nb_sessions;
 	internals->auth_opt = init_params->auth_opt;
 	internals->crypto_num_dev = cryptodev_cnt;
 
@@ -359,8 +349,7 @@  cryptodev_ccp_probe(struct rte_vdev_device *vdev)
 			"",
 			sizeof(struct ccp_private),
 			rte_socket_id(),
-			CCP_PMD_MAX_QUEUE_PAIRS,
-			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+			CCP_PMD_MAX_QUEUE_PAIRS
 		},
 		.auth_opt = CCP_PMD_AUTH_OPT_CCP,
 	};
@@ -382,8 +371,6 @@  cryptodev_ccp_probe(struct rte_vdev_device *vdev)
 		init_params.def_p.socket_id);
 	RTE_LOG(INFO, PMD, "Max number of queue pairs = %d\n",
 		init_params.def_p.max_nb_queue_pairs);
-	RTE_LOG(INFO, PMD, "Max number of sessions = %d\n",
-		init_params.def_p.max_nb_sessions);
 	RTE_LOG(INFO, PMD, "Authentication offload to %s\n",
 		((init_params.auth_opt == 0) ? "CCP" : "CPU"));
 
@@ -404,7 +391,6 @@  static struct cryptodev_driver ccp_crypto_drv;
 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_CCP_PMD, cryptodev_ccp_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_CCP_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int> "
 	"ccp_auth_opt=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(ccp_crypto_drv, cryptodev_ccp_pmd_drv.driver,
diff --git a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
index 56fa969d3..16ab0b6a6 100644
--- a/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
+++ b/drivers/crypto/dpaa2_sec/dpaa2_sec_dpseci.c
@@ -55,6 +55,8 @@  typedef uint64_t	dma_addr_t;
 #define SEC_FLC_DHR_OUTBOUND	-114
 #define SEC_FLC_DHR_INBOUND	0
 
+#define RTE_DPAA2_SEC_PMD_MAX_NB_SESSIONS 2048
+
 enum rta_sec_era rta_sec_era = RTA_SEC_ERA_8;
 
 static uint8_t cryptodev_driver_id;
@@ -2626,7 +2628,6 @@  dpaa2_sec_dev_infos_get(struct rte_cryptodev *dev,
 		info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
 		info->feature_flags = dev->feature_flags;
 		info->capabilities = dpaa2_sec_capabilities;
-		info->sym.max_nb_sessions = internals->max_nb_sessions;
 		info->driver_id = cryptodev_driver_id;
 	}
 }
diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
index 73cae483b..909583bd0 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.c
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
@@ -2214,7 +2214,6 @@  dpaa_sec_dev_infos_get(struct rte_cryptodev *dev,
 		info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
 		info->feature_flags = dev->feature_flags;
 		info->capabilities = dpaa_sec_capabilities;
-		info->sym.max_nb_sessions = internals->max_nb_sessions;
 		info->driver_id = cryptodev_driver_id;
 	}
 }
diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.h b/drivers/crypto/dpaa_sec/dpaa_sec.h
index e15e373fd..91df68009 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.h
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.h
@@ -137,6 +137,7 @@  struct dpaa_sec_qp {
 };
 
 #define RTE_DPAA_MAX_NB_SEC_QPS 8
+#define RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS 2048
 #define RTE_DPAA_MAX_RX_QUEUE RTE_DPAA_SEC_PMD_MAX_NB_SESSIONS
 #define DPAA_MAX_DEQUEUE_NUM_FRAMES 63
 
diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd.c b/drivers/crypto/kasumi/rte_kasumi_pmd.c
index 205dc1de7..65376b211 100644
--- a/drivers/crypto/kasumi/rte_kasumi_pmd.c
+++ b/drivers/crypto/kasumi/rte_kasumi_pmd.c
@@ -555,7 +555,6 @@  cryptodev_kasumi_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 init_error:
@@ -573,8 +572,7 @@  cryptodev_kasumi_probe(struct rte_vdev_device *vdev)
 		"",
 		sizeof(struct kasumi_private),
 		rte_socket_id(),
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 	};
 	const char *name;
 	const char *input_args;
@@ -617,7 +615,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd_drv);
 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_KASUMI_PMD, cryptodev_kasumi_pmd);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_KASUMI_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(kasumi_crypto_drv,
 		cryptodev_kasumi_pmd_drv.driver, cryptodev_driver_id);
diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c b/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
index a388dbb63..284669341 100644
--- a/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
+++ b/drivers/crypto/kasumi/rte_kasumi_pmd_ops.c
@@ -126,7 +126,6 @@  kasumi_pmd_info_get(struct rte_cryptodev *dev,
 	if (dev_info != NULL) {
 		dev_info->driver_id = dev->driver_id;
 		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = kasumi_pmd_capabilities;
 	}
diff --git a/drivers/crypto/kasumi/rte_kasumi_pmd_private.h b/drivers/crypto/kasumi/rte_kasumi_pmd_private.h
index a397bee65..2b12818bc 100644
--- a/drivers/crypto/kasumi/rte_kasumi_pmd_private.h
+++ b/drivers/crypto/kasumi/rte_kasumi_pmd_private.h
@@ -36,8 +36,6 @@ 
 struct kasumi_private {
 	unsigned max_nb_queue_pairs;
 	/**< Max number of queue pairs supported by device */
-	unsigned max_nb_sessions;
-	/**< Max number of sessions supported by device */
 };
 
 /** KASUMI buffer queue pair */
diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd.c b/drivers/crypto/mvsam/rte_mrvl_pmd.c
index 1b6029a56..822b6cac7 100644
--- a/drivers/crypto/mvsam/rte_mrvl_pmd.c
+++ b/drivers/crypto/mvsam/rte_mrvl_pmd.c
@@ -719,7 +719,6 @@  cryptodev_mrvl_crypto_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	/*
 	 * ret == -EEXIST is correct, it means DMA
@@ -734,8 +733,6 @@  cryptodev_mrvl_crypto_create(const char *name,
 			"DMA memory has been already initialized by a different driver.");
 	}
 
-	sam_params.max_num_sessions = internals->max_nb_sessions;
-
 	return sam_init(&sam_params);
 
 init_error:
@@ -766,8 +763,6 @@  cryptodev_mrvl_crypto_init(struct rte_vdev_device *vdev)
 
 	init_params.private_data_size = sizeof(struct mrvl_crypto_private);
 	init_params.max_nb_queue_pairs = sam_get_num_inst() * SAM_HW_RING_NUM;
-	init_params.max_nb_sessions =
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS;
 	init_params.socket_id = rte_socket_id();
 
 	ret = rte_cryptodev_pmd_parse_input_args(&init_params, args);
@@ -823,7 +818,6 @@  static struct cryptodev_driver mrvl_crypto_drv;
 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_MRVL_PMD, cryptodev_mrvl_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_MRVL_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(mrvl_crypto_drv, cryptodev_mrvl_pmd_drv.driver,
 		cryptodev_driver_id);
diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c b/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c
index 3f8de37b7..944a415cf 100644
--- a/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c
+++ b/drivers/crypto/mvsam/rte_mrvl_pmd_ops.c
@@ -471,7 +471,6 @@  mrvl_crypto_pmd_info_get(struct rte_cryptodev *dev,
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = mrvl_crypto_pmd_capabilities;
 		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 	}
 }
 
diff --git a/drivers/crypto/mvsam/rte_mrvl_pmd_private.h b/drivers/crypto/mvsam/rte_mrvl_pmd_private.h
index c16d95b46..bb528493a 100644
--- a/drivers/crypto/mvsam/rte_mrvl_pmd_private.h
+++ b/drivers/crypto/mvsam/rte_mrvl_pmd_private.h
@@ -51,7 +51,6 @@  enum mrvl_crypto_chain_order {
 /** Private data structure for each crypto device. */
 struct mrvl_crypto_private {
 	unsigned int max_nb_qpairs;	/**< Max number of queue pairs */
-	unsigned int max_nb_sessions;	/**< Max number of sessions */
 };
 
 /** MRVL crypto queue pair structure. */
diff --git a/drivers/crypto/null/null_crypto_pmd.c b/drivers/crypto/null/null_crypto_pmd.c
index 052b6546c..a8499cf94 100644
--- a/drivers/crypto/null/null_crypto_pmd.c
+++ b/drivers/crypto/null/null_crypto_pmd.c
@@ -182,7 +182,6 @@  cryptodev_null_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 }
@@ -196,7 +195,6 @@  cryptodev_null_probe(struct rte_vdev_device *dev)
 		sizeof(struct null_crypto_private),
 		rte_socket_id(),
 		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
 	};
 	const char *name, *args;
 	int retval;
@@ -245,7 +243,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_NULL_PMD, cryptodev_null_pmd_drv);
 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_NULL_PMD, cryptodev_null_pmd);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_NULL_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(null_crypto_drv, cryptodev_null_pmd_drv.driver,
 		cryptodev_driver_id);
diff --git a/drivers/crypto/null/null_crypto_pmd_ops.c b/drivers/crypto/null/null_crypto_pmd_ops.c
index f8e5f61f1..3ca1370e8 100644
--- a/drivers/crypto/null/null_crypto_pmd_ops.c
+++ b/drivers/crypto/null/null_crypto_pmd_ops.c
@@ -121,7 +121,6 @@  null_crypto_pmd_info_get(struct rte_cryptodev *dev,
 	if (dev_info != NULL) {
 		dev_info->driver_id = dev->driver_id;
 		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = null_crypto_pmd_capabilities;
 	}
diff --git a/drivers/crypto/null/null_crypto_pmd_private.h b/drivers/crypto/null/null_crypto_pmd_private.h
index 0fd133625..d7d769f3d 100644
--- a/drivers/crypto/null/null_crypto_pmd_private.h
+++ b/drivers/crypto/null/null_crypto_pmd_private.h
@@ -32,7 +32,6 @@ 
 /** private data structure for each NULL crypto device */
 struct null_crypto_private {
 	unsigned max_nb_qpairs;		/**< Max number of queue pairs */
-	unsigned max_nb_sessions;	/**< Max number of sessions */
 };
 
 /** NULL crypto queue pair */
diff --git a/drivers/crypto/openssl/rte_openssl_pmd.c b/drivers/crypto/openssl/rte_openssl_pmd.c
index 93c6d7e5d..965cab9f2 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd.c
@@ -1666,7 +1666,6 @@  cryptodev_openssl_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 
@@ -1687,7 +1686,6 @@  cryptodev_openssl_probe(struct rte_vdev_device *vdev)
 		sizeof(struct openssl_private),
 		rte_socket_id(),
 		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
 	};
 	const char *name;
 	const char *input_args;
@@ -1731,7 +1729,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
 	cryptodev_openssl_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv,
 		cryptodev_openssl_pmd_drv.driver, cryptodev_driver_id);
diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
index 1cb87d59a..485c80e7f 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
@@ -547,7 +547,6 @@  openssl_pmd_info_get(struct rte_cryptodev *dev,
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = openssl_pmd_capabilities;
 		dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 	}
 }
 
diff --git a/drivers/crypto/openssl/rte_openssl_pmd_private.h b/drivers/crypto/openssl/rte_openssl_pmd_private.h
index bc8dc7cdc..02ea81d5c 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_private.h
+++ b/drivers/crypto/openssl/rte_openssl_pmd_private.h
@@ -62,8 +62,6 @@  enum openssl_auth_mode {
 struct openssl_private {
 	unsigned int max_nb_qpairs;
 	/**< Max number of queue pairs */
-	unsigned int max_nb_sessions;
-	/**< Max number of sessions */
 };
 
 /** OPENSSL crypto queue pair */
diff --git a/drivers/crypto/qat/qat_crypto.c b/drivers/crypto/qat/qat_crypto.c
index 768dcbae0..e89d3bc11 100644
--- a/drivers/crypto/qat/qat_crypto.c
+++ b/drivers/crypto/qat/qat_crypto.c
@@ -1654,7 +1654,6 @@  void qat_dev_info_get(struct rte_cryptodev *dev,
 				ADF_NUM_BUNDLES_PER_DEV;
 		info->feature_flags = dev->feature_flags;
 		info->capabilities = internals->qat_dev_capabilities;
-		info->sym.max_nb_sessions = internals->max_nb_sessions;
 		info->driver_id = cryptodev_qat_driver_id;
 	}
 }
diff --git a/drivers/crypto/qat/qat_crypto.h b/drivers/crypto/qat/qat_crypto.h
index 281a142b9..c84cf669f 100644
--- a/drivers/crypto/qat/qat_crypto.h
+++ b/drivers/crypto/qat/qat_crypto.h
@@ -75,8 +75,6 @@  struct qat_qp {
 struct qat_pmd_private {
 	unsigned max_nb_queue_pairs;
 	/**< Max number of queue pairs supported by device */
-	unsigned max_nb_sessions;
-	/**< Max number of sessions supported by device */
 	enum qat_device_gen qat_dev_gen;
 	/**< QAT device generation */
 	const struct rte_cryptodev_capabilities *qat_dev_capabilities;
diff --git a/drivers/crypto/qat/rte_qat_cryptodev.c b/drivers/crypto/qat/rte_qat_cryptodev.c
index c8da07af6..74a903d3a 100644
--- a/drivers/crypto/qat/rte_qat_cryptodev.c
+++ b/drivers/crypto/qat/rte_qat_cryptodev.c
@@ -94,7 +94,6 @@  crypto_qat_create(const char *name, struct rte_pci_device *pci_dev,
 			RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
 
 	internals = cryptodev->data->dev_private;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 	switch (pci_dev->id.device_id) {
 	case 0x0443:
 		internals->qat_dev_gen = QAT_GEN1;
@@ -131,8 +130,7 @@  static int crypto_qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 	struct rte_cryptodev_pmd_init_params init_params = {
 		.name = "",
 		.socket_id = pci_dev->device.numa_node,
-		.private_data_size = sizeof(struct qat_pmd_private),
-		.max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS
+		.private_data_size = sizeof(struct qat_pmd_private)
 	};
 	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 
diff --git a/drivers/crypto/scheduler/scheduler_pmd.c b/drivers/crypto/scheduler/scheduler_pmd.c
index 25d6409f3..32a19c106 100644
--- a/drivers/crypto/scheduler/scheduler_pmd.c
+++ b/drivers/crypto/scheduler/scheduler_pmd.c
@@ -31,7 +31,6 @@  struct scheduler_init_params {
 #define RTE_CRYPTODEV_VDEV_MODE			("mode")
 #define RTE_CRYPTODEV_VDEV_ORDERING		("ordering")
 #define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG	("max_nb_queue_pairs")
-#define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG	("max_nb_sessions")
 #define RTE_CRYPTODEV_VDEV_SOCKET_ID		("socket_id")
 #define RTE_CRYPTODEV_VDEV_COREMASK		("coremask")
 #define RTE_CRYPTODEV_VDEV_CORELIST		("corelist")
@@ -42,7 +41,6 @@  const char *scheduler_valid_params[] = {
 	RTE_CRYPTODEV_VDEV_MODE,
 	RTE_CRYPTODEV_VDEV_ORDERING,
 	RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
-	RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
 	RTE_CRYPTODEV_VDEV_SOCKET_ID,
 	RTE_CRYPTODEV_VDEV_COREMASK,
 	RTE_CRYPTODEV_VDEV_CORELIST
@@ -406,13 +404,6 @@  scheduler_parse_init_params(struct scheduler_init_params *params,
 		if (ret < 0)
 			goto free_kvlist;
 
-		ret = rte_kvargs_process(kvlist,
-				RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
-				&parse_integer_arg,
-				&params->def_p.max_nb_sessions);
-		if (ret < 0)
-			goto free_kvlist;
-
 		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
 				&parse_integer_arg,
 				&params->def_p.socket_id);
@@ -466,8 +457,7 @@  cryptodev_scheduler_probe(struct rte_vdev_device *vdev)
 			"",
 			sizeof(struct scheduler_ctx),
 			rte_socket_id(),
-			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 		},
 		.nb_slaves = 0,
 		.mode = CDEV_SCHED_MODE_NOT_SET,
@@ -500,7 +490,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SCHEDULER_PMD,
 	cryptodev_scheduler_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SCHEDULER_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int> "
 	"slave=<name>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(scheduler_crypto_drv,
diff --git a/drivers/crypto/scheduler/scheduler_pmd_ops.c b/drivers/crypto/scheduler/scheduler_pmd_ops.c
index 147dc51e9..88be72a05 100644
--- a/drivers/crypto/scheduler/scheduler_pmd_ops.c
+++ b/drivers/crypto/scheduler/scheduler_pmd_ops.c
@@ -321,8 +321,6 @@  scheduler_pmd_info_get(struct rte_cryptodev *dev,
 		struct rte_cryptodev_info *dev_info)
 {
 	struct scheduler_ctx *sched_ctx = dev->data->dev_private;
-	uint32_t max_nb_sessions = sched_ctx->nb_slaves ?
-			UINT32_MAX : RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS;
 	uint32_t i;
 
 	if (!dev_info)
@@ -338,17 +336,12 @@  scheduler_pmd_info_get(struct rte_cryptodev *dev,
 		struct rte_cryptodev_info slave_info;
 
 		rte_cryptodev_info_get(slave_dev_id, &slave_info);
-		max_nb_sessions = slave_info.sym.max_nb_sessions <
-				max_nb_sessions ?
-				slave_info.sym.max_nb_sessions :
-				max_nb_sessions;
 	}
 
 	dev_info->driver_id = dev->driver_id;
 	dev_info->feature_flags = dev->feature_flags;
 	dev_info->capabilities = sched_ctx->capabilities;
 	dev_info->max_nb_queue_pairs = sched_ctx->max_nb_queue_pairs;
-	dev_info->sym.max_nb_sessions = max_nb_sessions;
 }
 
 /** Release queue pair */
diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd.c b/drivers/crypto/snow3g/rte_snow3g_pmd.c
index 72751e35e..fe595abe1 100644
--- a/drivers/crypto/snow3g/rte_snow3g_pmd.c
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd.c
@@ -555,7 +555,6 @@  cryptodev_snow3g_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 init_error:
@@ -574,7 +573,6 @@  cryptodev_snow3g_probe(struct rte_vdev_device *vdev)
 		sizeof(struct snow3g_private),
 		rte_socket_id(),
 		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
 	};
 	const char *name;
 	const char *input_args;
@@ -617,7 +615,6 @@  RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd_drv);
 RTE_PMD_REGISTER_ALIAS(CRYPTODEV_NAME_SNOW3G_PMD, cryptodev_snow3g_pmd);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SNOW3G_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(snow3g_crypto_drv,
 		cryptodev_snow3g_pmd_drv.driver, cryptodev_driver_id);
diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
index f60b47598..fff4644c0 100644
--- a/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd_ops.c
@@ -130,7 +130,6 @@  snow3g_pmd_info_get(struct rte_cryptodev *dev,
 	if (dev_info != NULL) {
 		dev_info->driver_id = dev->driver_id;
 		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = snow3g_pmd_capabilities;
 	}
diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd_private.h b/drivers/crypto/snow3g/rte_snow3g_pmd_private.h
index eea900e0a..2c6e1a948 100644
--- a/drivers/crypto/snow3g/rte_snow3g_pmd_private.h
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd_private.h
@@ -36,8 +36,6 @@ 
 struct snow3g_private {
 	unsigned max_nb_queue_pairs;
 	/**< Max number of queue pairs supported by device */
-	unsigned max_nb_sessions;
-	/**< Max number of sessions supported by device */
 };
 
 /** SNOW 3G buffer queue pair */
diff --git a/drivers/crypto/virtio/virtio_cryptodev.c b/drivers/crypto/virtio/virtio_cryptodev.c
index 482edea1a..8395801a4 100644
--- a/drivers/crypto/virtio/virtio_cryptodev.c
+++ b/drivers/crypto/virtio/virtio_cryptodev.c
@@ -1411,8 +1411,6 @@  virtio_crypto_dev_info_get(struct rte_cryptodev *dev,
 		info->driver_id = cryptodev_virtio_driver_id;
 		info->feature_flags = dev->feature_flags;
 		info->max_nb_queue_pairs = hw->max_dataqueues;
-		info->sym.max_nb_sessions =
-			RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS;
 		info->capabilities = hw->virtio_dev_capabilities;
 	}
 }
@@ -1426,7 +1424,6 @@  crypto_virtio_pci_probe(
 		.name = "",
 		.socket_id = rte_socket_id(),
 		.private_data_size = sizeof(struct virtio_crypto_hw),
-		.max_nb_sessions = RTE_VIRTIO_CRYPTO_PMD_MAX_NB_SESSIONS
 	};
 	char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 
diff --git a/drivers/crypto/zuc/rte_zuc_pmd.c b/drivers/crypto/zuc/rte_zuc_pmd.c
index a805b2278..396f25975 100644
--- a/drivers/crypto/zuc/rte_zuc_pmd.c
+++ b/drivers/crypto/zuc/rte_zuc_pmd.c
@@ -479,7 +479,6 @@  cryptodev_zuc_create(const char *name,
 	internals = dev->data->dev_private;
 
 	internals->max_nb_queue_pairs = init_params->max_nb_queue_pairs;
-	internals->max_nb_sessions = init_params->max_nb_sessions;
 
 	return 0;
 init_error:
@@ -497,8 +496,7 @@  cryptodev_zuc_probe(struct rte_vdev_device *vdev)
 		"",
 		sizeof(struct zuc_private),
 		rte_socket_id(),
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS,
-		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS
+		RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
 	};
 	const char *name;
 	const char *input_args;
@@ -541,7 +539,6 @@  static struct cryptodev_driver zuc_crypto_drv;
 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_ZUC_PMD, cryptodev_zuc_pmd_drv);
 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_ZUC_PMD,
 	"max_nb_queue_pairs=<int> "
-	"max_nb_sessions=<int> "
 	"socket_id=<int>");
 RTE_PMD_REGISTER_CRYPTO_DRIVER(zuc_crypto_drv, cryptodev_zuc_pmd_drv.driver,
 		cryptodev_driver_id);
diff --git a/drivers/crypto/zuc/rte_zuc_pmd_ops.c b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
index 8abac8989..ac509e70d 100644
--- a/drivers/crypto/zuc/rte_zuc_pmd_ops.c
+++ b/drivers/crypto/zuc/rte_zuc_pmd_ops.c
@@ -130,7 +130,6 @@  zuc_pmd_info_get(struct rte_cryptodev *dev,
 	if (dev_info != NULL) {
 		dev_info->driver_id = dev->driver_id;
 		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
-		dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 		dev_info->feature_flags = dev->feature_flags;
 		dev_info->capabilities = zuc_pmd_capabilities;
 	}
diff --git a/drivers/crypto/zuc/rte_zuc_pmd_private.h b/drivers/crypto/zuc/rte_zuc_pmd_private.h
index b83c4a047..2bd378ad6 100644
--- a/drivers/crypto/zuc/rte_zuc_pmd_private.h
+++ b/drivers/crypto/zuc/rte_zuc_pmd_private.h
@@ -37,8 +37,6 @@ 
 struct zuc_private {
 	unsigned max_nb_queue_pairs;
 	/**< Max number of queue pairs supported by device */
-	unsigned max_nb_sessions;
-	/**< Max number of sessions supported by device */
 };
 
 /** ZUC buffer queue pair */
diff --git a/lib/librte_cryptodev/rte_cryptodev.h b/lib/librte_cryptodev/rte_cryptodev.h
index a4b8cccc2..78be5bdb8 100644
--- a/lib/librte_cryptodev/rte_cryptodev.h
+++ b/lib/librte_cryptodev/rte_cryptodev.h
@@ -381,11 +381,6 @@  struct rte_cryptodev_info {
 
 	unsigned max_nb_queue_pairs;
 	/**< Maximum number of queues pairs supported by device. */
-
-	struct {
-		unsigned max_nb_sessions;
-		/**< Maximum number of sessions supported by device. */
-	} sym;
 };
 
 #define RTE_CRYPTODEV_DETACHED  (0)
diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.c b/lib/librte_cryptodev/rte_cryptodev_pmd.c
index f2aac24b7..2088ac3f3 100644
--- a/lib/librte_cryptodev/rte_cryptodev_pmd.c
+++ b/lib/librte_cryptodev/rte_cryptodev_pmd.c
@@ -65,13 +65,6 @@  rte_cryptodev_pmd_parse_input_args(
 		if (ret < 0)
 			goto free_kvlist;
 
-		ret = rte_kvargs_process(kvlist,
-				RTE_CRYPTODEV_PMD_MAX_NB_SESS_ARG,
-				&rte_cryptodev_pmd_parse_uint_arg,
-				&params->max_nb_sessions);
-		if (ret < 0)
-			goto free_kvlist;
-
 		ret = rte_kvargs_process(kvlist,
 				RTE_CRYPTODEV_PMD_SOCKET_ID_ARG,
 				&rte_cryptodev_pmd_parse_uint_arg,
@@ -109,10 +102,9 @@  rte_cryptodev_pmd_create(const char *name,
 			device->driver->name, name);
 
 	CDEV_LOG_INFO("[%s] - Initialisation parameters - name: %s,"
-			"socket id: %d, max queue pairs: %u, max sessions: %u",
+			"socket id: %d, max queue pairs: %u",
 			device->driver->name, name,
-			params->socket_id, params->max_nb_queue_pairs,
-			params->max_nb_sessions);
+			params->socket_id, params->max_nb_queue_pairs);
 
 	/* allocate device structure */
 	cryptodev = rte_cryptodev_pmd_allocate(name, params->socket_id);
diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h
index 69d776934..0739ce065 100644
--- a/lib/librte_cryptodev/rte_cryptodev_pmd.h
+++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h
@@ -59,18 +59,15 @@  extern "C" {
 
 
 #define RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS	8
-#define RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_SESSIONS	2048
 
 #define RTE_CRYPTODEV_PMD_NAME_ARG			("name")
 #define RTE_CRYPTODEV_PMD_MAX_NB_QP_ARG			("max_nb_queue_pairs")
-#define RTE_CRYPTODEV_PMD_MAX_NB_SESS_ARG		("max_nb_sessions")
 #define RTE_CRYPTODEV_PMD_SOCKET_ID_ARG			("socket_id")
 
 
 static const char * const cryptodev_pmd_valid_params[] = {
 	RTE_CRYPTODEV_PMD_NAME_ARG,
 	RTE_CRYPTODEV_PMD_MAX_NB_QP_ARG,
-	RTE_CRYPTODEV_PMD_MAX_NB_SESS_ARG,
 	RTE_CRYPTODEV_PMD_SOCKET_ID_ARG
 };
 
@@ -83,7 +80,6 @@  struct rte_cryptodev_pmd_init_params {
 	size_t private_data_size;
 	int socket_id;
 	unsigned int max_nb_queue_pairs;
-	unsigned int max_nb_sessions;
 };
 
 /** Global structure used for maintaining state of allocated crypto devices */
diff --git a/test/test/test_cryptodev.c b/test/test/test_cryptodev.c
index 389f79677..2c687bd7c 100644
--- a/test/test/test_cryptodev.c
+++ b/test/test/test_cryptodev.c
@@ -39,6 +39,7 @@ 
 #include "test_cryptodev_hmac_test_vectors.h"
 
 #define VDEV_ARGS_SIZE 100
+#define MAX_NB_SESSIONS            4
 
 static int gbl_driver_id;
 
@@ -437,7 +438,7 @@  testsuite_setup(void)
 	 */
 	ts_params->session_mpool = rte_mempool_create(
 				"test_sess_mp",
-				info.sym.max_nb_sessions * 2,
+				MAX_NB_SESSIONS * 2,
 				session_size,
 				0, 0, NULL, NULL, NULL,
 				NULL, SOCKET_ID_ANY,
@@ -6499,10 +6500,10 @@  test_multi_session(void)
 
 	sessions = rte_malloc(NULL,
 			(sizeof(struct rte_cryptodev_sym_session *) *
-			dev_info.sym.max_nb_sessions) + 1, 0);
+			MAX_NB_SESSIONS) + 1, 0);
 
 	/* Create multiple crypto sessions*/
-	for (i = 0; i < dev_info.sym.max_nb_sessions; i++) {
+	for (i = 0; i < MAX_NB_SESSIONS; i++) {
 
 		sessions[i] = rte_cryptodev_sym_session_create(
 				ts_params->session_mpool);
@@ -6551,7 +6552,7 @@  test_multi_session(void)
 	TEST_ASSERT_NULL(sessions[i],
 			"Session creation succeeded unexpectedly!");
 
-	for (i = 0; i < dev_info.sym.max_nb_sessions; i++) {
+	for (i = 0; i < MAX_NB_SESSIONS; i++) {
 		rte_cryptodev_sym_session_clear(ts_params->valid_devs[0],
 				sessions[i]);
 		rte_cryptodev_sym_session_free(sessions[i]);
@@ -6610,7 +6611,7 @@  test_multi_session_random_usage(void)
 
 	sessions = rte_malloc(NULL,
 			(sizeof(struct rte_cryptodev_sym_session *)
-					* dev_info.sym.max_nb_sessions) + 1, 0);
+					* MAX_NB_SESSIONS) + 1, 0);
 
 	for (i = 0; i < MB_SESSION_NUMBER; i++) {
 		sessions[i] = rte_cryptodev_sym_session_create(
@@ -8545,7 +8546,7 @@  test_scheduler_attach_slave_op(void)
 		if (ts_params->session_mpool == NULL) {
 			ts_params->session_mpool = rte_mempool_create(
 					"test_sess_mp",
-					info.sym.max_nb_sessions * 2,
+					MAX_NB_SESSIONS * 2,
 					session_size,
 					0, 0, NULL, NULL, NULL,
 					NULL, SOCKET_ID_ANY,